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详解Bootstrap表单组件 - 洛水三千

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May 20, 2016 pm 04:50 PM

表单常见的元素主要包括：文本输入框、下拉选择框、单选框、复选框、文本域、按钮等。下面是不同的bootstrap版本：

LESS: forms.less

SASS: _forms.scss

bootstrap仅对表单内的fieldset、legend、label标签进行了定制

<span style="color: #800000;">fieldset </span>{<span style="color: #ff0000;">
min-width</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
padding</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
margin</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
border</span>:<span style="color: #0000ff;"> 0</span>;
}<span style="color: #800000;">
legend </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;">
width</span>:<span style="color: #0000ff;"> 100%</span>;<span style="color: #ff0000;">
padding</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 20px</span>;<span style="color: #ff0000;">
font-size</span>:<span style="color: #0000ff;"> 21px</span>;<span style="color: #ff0000;">
line-height</span>:<span style="color: #0000ff;"> inherit</span>;<span style="color: #ff0000;">
color</span>:<span style="color: #0000ff;"> #333</span>;<span style="color: #ff0000;">
border</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
border-bottom</span>:<span style="color: #0000ff;"> 1px solid #e5e5e5</span>;
}<span style="color: #800000;">

label </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> inline-block</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 5px</span>;<span style="color: #ff0000;">
font-weight</span>:<span style="color: #0000ff;"> bold</span>;
}

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除了这个几个元素之外，还有input、select、textarea等元素，在bootstrap框架中，通过定制一个类名.form-control来实现效果

1、宽度变成了100%；

2、设置了一个浅灰色（#ccc）的边框

3、具有4px的圆角

4、设置阴影效果，并且元素得到焦点时，阴影和边框效果会有所变化

5、设置了palceholder的颜色为#999

内联表单

如果要在input之前添加一个了label标签，会导致input换行显示；如果又必须添加这样一个label标签，且不想让input换行，就需要将label标签也放在容器.form-group中，例如：

<span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group "</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="sr-only"</span><span style="color: #0000ff;">></span>邮箱地址<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="email"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="请输入邮箱号"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span></span></span></span></span>

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实现联表单效果只需在form元素中添加类名.form-inline即可，实现原理：

将表单控件设置成内联块元素（display：inline-block），让表单控件在一行显示。

例子：

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-inline"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="sr-only"</span><span style="color: #0000ff;">></span>邮箱<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> type</span><span style="color: #0000ff;">="email"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="请输入邮箱号"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="sr-only"</span><span style="color: #0000ff;">></span>密码<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="password"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="请输入密码"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span> <span style="color: #0000ff;">></span><span style="color: #000000;"> 记住密码
            </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">button </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="btn btn-default"</span><span style="color: #0000ff;">></span>进入邮箱<span style="color: #0000ff;"></span><span style="color: #800000;">button</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span>

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效果如下：

看到上图效果你有没有发现代码里明明有label标签，且没放在容器.form-group中，input也不会换行，更奇怪的是label标签的内容居然没有显示出来！其实仔细一看label标签是添加了类名.sr-only，就是它将label给隐藏起来了，来看看它的源码：

<span style="color: #800000;">.sr-only </span>{<span style="color: #ff0000;">
position</span>:<span style="color: #0000ff;"> absolute</span>;<span style="color: #ff0000;">
width</span>:<span style="color: #0000ff;"> 1px</span>;<span style="color: #ff0000;">
height</span>:<span style="color: #0000ff;"> 1px</span>;<span style="color: #ff0000;">
padding</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
margin</span>:<span style="color: #0000ff;"> -1px</span>;<span style="color: #ff0000;">
overflow</span>:<span style="color: #0000ff;"> hidden</span>;<span style="color: #ff0000;">
clip</span>:<span style="color: #0000ff;"> rect(0, 0, 0, 0)</span>;<span style="color: #ff0000;">
border</span>:<span style="color: #0000ff;"> 0</span>;
}

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既然添加了label标签，又添加.sr-only类名把label给隐藏起来，是不是多此一举？？？但这恰恰是bootstrap框架的一个优点，如果没有为输入控件设置label，屏幕阅读器将无法正确识别，同时也为残障人员进行了一定的考虑

水平表单

在bootstrap中实现水平表单效果需满足下面两个条件：

1、在form元素上使用类名.form-horizontal

2、配合bootstrap框架的网格系统（详细：详解Bootstrap网格系统）

在form元素使用类名.form-horizontal主要有以下几个作用：

1、设置表单控件padding和margin值

2、改变.from-group的表现形式，类似于网格系统的row

css源码：

<span style="color: #800000;">.form-horizontal .control-label,
.form-horizontal .radio,
.form-horizontal .checkbox,
.form-horizontal .radio-inline,
.form-horizontal .checkbox-inline </span>{<span style="color: #ff0000;">
padding-top</span>:<span style="color: #0000ff;"> 7px</span>;<span style="color: #ff0000;">
margin-top</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 0</span>;
}<span style="color: #800000;">
.form-horizontal .radio,
.form-horizontal .checkbox </span>{<span style="color: #ff0000;">
min-height</span>:<span style="color: #0000ff;"> 27px</span>;
}<span style="color: #800000;">
.form-horizontal .form-group </span>{<span style="color: #ff0000;">
margin-right</span>:<span style="color: #0000ff;"> -15px</span>;<span style="color: #ff0000;">
margin-left</span>:<span style="color: #0000ff;"> -15px</span>;
}<span style="color: #800000;">
.form-horizontal .form-control-static </span>{<span style="color: #ff0000;">
padding-top</span>:<span style="color: #0000ff;"> 7px</span>;
}<span style="color: #800000;">
@media (min-width: 768px) </span>{<span style="color: #ff0000;">
.form-horizontal .control-label {
text-align</span>:<span style="color: #0000ff;"> right</span>;
  }<span style="color: #800000;">
}
.form-horizontal .has-feedback .form-control-feedback </span>{<span style="color: #ff0000;">
top</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
right</span>:<span style="color: #0000ff;"> 15px</span>;
}

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例子:

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-horizontal"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-2 control-label"</span><span style="color: #0000ff;">></span>邮箱<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-10"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="email"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="请输入邮箱"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-2 control-label"</span><span style="color: #0000ff;">></span>密码<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-10"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="password"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="请输入密码"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-10 col-sm-offset-2"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span><span style="color: #000000;">记住密码
                </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-sm-10 col-sm-offset-2"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">button </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="btn btn-default"</span><span style="color: #0000ff;">></span>进入邮箱<span style="color: #0000ff;"></span><span style="color: #800000;">button</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>

        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

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效果如下：

单行输入框

在bootstrap中使用input时也必须添加type类型，如果没有指定type类型，将无法得到正确的样式，因为bootstrap框架都是通过input[type=”?”]的形式来定义样式的，如：text类型，对应得是input[type=”text”]

为了让控件在各种表单风格中样式不错，需要添加类名.form-control

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">role</span><span style="color: #0000ff;">="form"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="email"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="enter email"</span> <span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span>

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下拉选择框select

多行选择设置multiple属性的值为multiple

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">role</span><span style="color: #0000ff;">="form"</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">select </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>1<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>2<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>3<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>4<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>5<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"></span><span style="color: #800000;">select</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"><span style="color: #800000;">select </span><span style="color: #ff0000;">multiple class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>1<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>2<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>3<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>4<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>5<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
  <span style="color: #0000ff;"></span><span style="color: #800000;">select</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

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文本域textarea

文本域和原始使用方法一样，设置rows可定义其高度，设置cols可以定义其宽度，如果textarea元素中添加了类名.form-control,则无需设置cols属性，因为bootstrap框架中.form-control样式的标的空间宽度为100%或auto

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">role</span><span style="color: #0000ff;">="form"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">textarea  </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> rows</span><span style="color: #0000ff;">="3"</span><span style="color: #0000ff;">></span><span style="color: #800000;">textarea</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span>

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复选框checkbox和单选框radio

checkbox和radio与label标签配合使用会出现一些小问题（如对齐问题）

<span style="color: #0000ff;"><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span><span style="color: #000000;"> 记住密码
            </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="radio"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="optionsRadios"</span><span style="color: #ff0000;"> id</span><span style="color: #0000ff;">="optionsRadios1"</span><span style="color: #ff0000;"> checked</span><span style="color: #0000ff;">></span><span style="color: #000000;"> 喜欢
            </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="radio"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="optionsRadios"</span><span style="color: #ff0000;"> id</span><span style="color: #0000ff;">="optionsRadios2"</span><span style="color: #0000ff;">></span><span style="color: #000000;">不喜欢
            </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span>

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1、不管是checkbox还是radio都使用label包起来了

2、checkbox连同label标签放在一个名为.checkbox的容器内

3、radio连同label标签放在一个名为.radio的容器内,bootstrap主要借助.checkbox和.radio样式来处理复选框、单选按钮与标签的对齐方式

<span style="color: #800000;">.radio,
.checkbox </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;">
min-height</span>:<span style="color: #0000ff;"> 20px</span>;<span style="color: #ff0000;">
padding-left</span>:<span style="color: #0000ff;"> 20px</span>;<span style="color: #ff0000;">
margin-top</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 10px</span>;
}<span style="color: #800000;">
.radio label,
.checkbox label </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> inline</span>;<span style="color: #ff0000;">
font-weight</span>:<span style="color: #0000ff;"> normal</span>;<span style="color: #ff0000;">
cursor</span>:<span style="color: #0000ff;"> pointer</span>;
}<span style="color: #800000;">
.radio input[type="radio"],
.radio-inline input[type="radio"],
.checkbox input[type="checkbox"],
.checkbox-inline input[type="checkbox"] </span>{<span style="color: #ff0000;">
float</span>:<span style="color: #0000ff;"> left</span>;<span style="color: #ff0000;">
margin-left</span>:<span style="color: #0000ff;"> -20px</span>;
}<span style="color: #800000;">
.radio + .radio,
.checkbox + .checkbox </span>{<span style="color: #ff0000;">
margin-top</span>:<span style="color: #0000ff;"> -5px</span>;
}

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复选框和单选按钮水平排列

1、如果checkbox需要水平排列，只需要在label标签上添加类名.checkbox-inline

2、如果radio需要水平排列，只需在label标签上添加类名.radion-inline

下面是css源码：

<span style="color: #800000;">.radio-inline,
.checkbox-inline </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> inline-block</span>;<span style="color: #ff0000;">
padding-left</span>:<span style="color: #0000ff;"> 20px</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
font-weight</span>:<span style="color: #0000ff;"> normal</span>;<span style="color: #ff0000;">
vertical-align</span>:<span style="color: #0000ff;"> middle</span>;<span style="color: #ff0000;">
cursor</span>:<span style="color: #0000ff;"> pointer</span>;
}<span style="color: #800000;">
.radio-inline + .radio-inline,
.checkbox-inline + .checkbox-inline </span>{<span style="color: #ff0000;">
margin-top</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
margin-left</span>:<span style="color: #0000ff;"> 10px</span>;
}

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<span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="radio-inline"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="sex"</span><span style="color: #ff0000;">value</span><span style="color: #0000ff;">="option1"</span><span style="color: #0000ff;">></span><span style="color: #000000;"> 男性
        </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>

        <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="radio-inline"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;">  name</span><span style="color: #0000ff;">="sex"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="option2"</span><span style="color: #0000ff;">></span><span style="color: #000000;"> 女性
        </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>

        <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="radio-inline"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="radio"</span><span style="color: #ff0000;"> name</span><span style="color: #0000ff;">="sex"</span><span style="color: #ff0000;"> value</span><span style="color: #0000ff;">="option3"</span><span style="color: #0000ff;">></span><span style="color: #000000;">中性
        </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span>

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表单控件状态

1、焦点状态：

焦点状态是通过伪类：focus来实现的，bootstrap表单控件中的焦点状态删除了outline的默认样式，重新添加阴影效果，下面是css源码：

<span style="color: #800000;">.form-control:focus </span>{<span style="color: #ff0000;">
border-color</span>:<span style="color: #0000ff;"> #66afe9</span>;<span style="color: #ff0000;">
outline</span>:<span style="color: #0000ff;"> 0</span>;<span style="color: #ff0000;">
  -webkit-box-shadow</span>:<span style="color: #0000ff;"> inset 0 1px 1pxrgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6)</span>;<span style="color: #ff0000;">
box-shadow</span>:<span style="color: #0000ff;"> inset 0 1px 1pxrgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6)</span>;
}

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从源码中可以看出，要让控件在焦点状态下有上面的样式效果需要给控件添加类名.form-control

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-horizontal"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group "</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-xs-6"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">=" input-lg"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="不是在焦点状态下的效果"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="col-xs-6"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control input-lg"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="在焦点状态下的效果"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
 <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span>

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file、radio、checkbox控件在焦点状态下的效果也与普通的input控件不太一样，下面是源码

<span style="color: #800000;">input[type="file"]:focus,
input[type="radio"]:focus,
input[type="checkbox"]:focus </span>{<span style="color: #ff0000;">
outline</span>:<span style="color: #0000ff;"> thin dotted</span>;<span style="color: #ff0000;">
outline</span>:<span style="color: #0000ff;"> 5px auto -webkit-focus-ring-color</span>;<span style="color: #ff0000;">
outline-offset</span>:<span style="color: #0000ff;"> -2px</span>;
}

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2、禁用状态：

在相应得表单控件上添加属性disabled即可，下面是css源码：

<span style="color: #800000;">.form-control[disabled],
.form-control[readonly],
fieldset[disabled] .form-control </span>{<span style="color: #ff0000;">
cursor</span>:<span style="color: #0000ff;"> not-allowed</span>;<span style="color: #ff0000;">
background-color</span>:<span style="color: #0000ff;"> #eee</span>;<span style="color: #ff0000;">
opacity</span>:<span style="color: #0000ff;"> 1</span>;
}

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<span style="color: #800000;">input[type="radio"][disabled],
input[type="checkbox"][disabled],
.radio[disabled],
.radio-inline[disabled],
.checkbox[disabled],
.checkbox-inline[disabled],
fieldset[disabled] input[type="radio"],
fieldset[disabled] input[type="checkbox"],
fieldset[disabled] .radio,
fieldset[disabled] .radio-inline,
fieldset[disabled] .checkbox,
fieldset[disabled] .checkbox-inline </span>{<span style="color: #ff0000;">
cursor</span>:<span style="color: #0000ff;"> not-allowed</span>;
}

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例子：

<span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="表单已禁用"</span><span style="color: #ff0000;"> disabled</span><span style="color: #0000ff;">></span></span>

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如果fieldset设置了disabled属性，整个域都会处于被禁用状态

例子：

<span style="color: #0000ff;"><span style="color: #800000;">form </span><span style="color: #ff0000;">role</span><span style="color: #0000ff;">="form"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">fieldset </span><span style="color: #ff0000;">disabled</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span> 输入框已禁用<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="禁止输入内容"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group"</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>下拉框已禁用<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"><span style="color: #800000;">select </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>1<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>2<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>3<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
                    <span style="color: #0000ff;"><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>4<span style="color: #0000ff;"></span><span style="color: #800000;">option</span><span style="color: #0000ff;">></span>
                <span style="color: #0000ff;"></span><span style="color: #800000;">select</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span>
              <span style="color: #0000ff;"><span style="color: #800000;">label </span><span style="color: #0000ff;">></span>
                  <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="checkbox"</span><span style="color: #0000ff;">></span><span style="color: #000000;">选项框被禁用了
              </span><span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">button </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="submit"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="btn btn-primary"</span><span style="color: #0000ff;">></span>提交<span style="color: #0000ff;"></span><span style="color: #800000;">button</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">fieldset</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

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效果如下：（鼠标移上去的时候出现禁用的图标，这里是直接截的图看不到这个效果）

3、验证状态

bootstrap提供下面这几种效果：

1、.has-warning:警告状态黄色

2、 .has-error :错误状态红色

3、 .has-success:成功状态绿色

使用的时候只需在form-group容器上对应添加状态类名，三种状态下效果都是一样的，只是颜色不一样而已

例子：

<span style="color: #0000ff;"><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-success"</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>成功状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
          <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="成功状态"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-error"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>错误状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="错误状态"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-warning"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>警告状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="警告状态"</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
    <span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span>

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效果如下：

有时候，在表单验证的时不同的状态会提供不同的icon，如果要在对应的状态下显示icon出来，只需要在对应的状态下添加类名.has-feedback ,注意它要和.has-error,.has-success,.has-warning一起使用。

bootstrap的小图标都是使用@font-face来制作的。如：

例子：

<span style="color: #0000ff;"><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-success has-feedback"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span> 成功状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="成功状态"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">span </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="glyphicon glyphicon-ok form-control-feedback"</span><span style="color: #0000ff;">></span><span style="color: #800000;">span</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-error has-feedback"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>错误状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="错误状态"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">span </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="glyphicon glyphicon-remove form-control-feedback"</span><span style="color: #0000ff;">></span><span style="color: #800000;">span</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-warning has-feedback"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>警告状态<span style="color: #0000ff;"></span><span style="color: #800000;">label</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">input </span><span style="color: #ff0000;">type</span><span style="color: #0000ff;">="text"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="form-control"</span><span style="color: #ff0000;"> placeholder</span><span style="color: #0000ff;">="警告状态"</span><span style="color: #0000ff;">></span>
            <span style="color: #0000ff;"><span style="color: #800000;">span </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="glyphicon glyphicon-warning-sign form-control-feedback"</span><span style="color: #0000ff;">></span><span style="color: #800000;">span</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span>
<span style="color: #0000ff;"></span><span style="color: #800000;">form</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

Copy after login

效果如下：

表单提示信息

一般在制作表单验证时，需要提供不同的提示信息，在bootstrap框架中使用.help-block，将提示信息以块状显示，并且显示在控件底部

下面是css源码：

<span style="color: #800000;">.help-block </span>{<span style="color: #ff0000;">
display</span>:<span style="color: #0000ff;"> block</span>;<span style="color: #ff0000;">
margin-top</span>:<span style="color: #0000ff;"> 5px</span>;<span style="color: #ff0000;">
margin-bottom</span>:<span style="color: #0000ff;"> 10px</span>;<span style="color: #ff0000;">
color</span>:<span style="color: #0000ff;"> #737373</span>;
}

Copy after login

例子：

<span style="color: #0000ff;"><span style="color: #800000;">form</span><span style="color: #0000ff;">></span>
        <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="form-group has-success has-feedback"</span><span style="color: #0000ff;">></span>
           </span></span>

Copy after login

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