Blogger Information
Blog 10
fans 0
comment 0
visits 5762
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
HTML一些常用的标签以及CSS样式和选择器—2018年8月10日20时00分
疯狂石头的博客
Original
772 people have browsed it

第一次作业


实例

html文件

<!DOCTYPE html>
<!--DTD文档声明:html xml xhtml-->

<head>
    <meta charset="utf-8">
    <!--编码类型-->
    <title>document</title>
    <link rel="stylesheet" type="text/css" href="static/style.css">
    <!--外部引入样式,为了共享-->
    <link rel="shortcut icon" type="image/x-icon" href="images/logo-footer.png">
    <!--网页标题小图标-->

    <style>    /*文档内部样式:应用于当前页面*/
        
        /*通用选择器*/

        * {
            text-decoration: none;
            background:#b6caea;
        }


        /*类选择器*/

        .box1 {
            width: 300px;
            height: 100px;
            background: #009AE1;
        }

        /*id选择器*/
        #box3{
            width: 300px;
            height: 100px;
            background: #ff2f2f!important;
        }

        #box2 {
            width: 300px;
            height: 100px;
            background: red;
        }
         #box3{
            width: 300px;
            height: 100px;
            background: #ce8181;
        }


       
        /*标签选择器*/
        div{
            background: white;
        }
        a {
            color: #ff9300;
        }
        /*属性选择器*/
        a[href="https://www.baidu.com"] {
            color: cyan;
        }
        
        a[href="http://www.php.cn"] {
            color: crimson;
        }

        /*后代选择器*/

        div a {
            color: darkseagreen;
        }
    </style>
</head>

<body>
    <div class="box1"></div>
    <HR> <!--分割线-->
    <div class="box1" id="box2" style="background:#66b197 ">
        元素内嵌样式 总结:样式优先级:元素内嵌样式>文档内部样式>外部引入样式;
    </div>
    <hr>
    <div id="box3">
         总结:选择器优先级:!important>id>类 伪类 属性>标签>通配>继承>浏览器默认 
    </div>
    <HR>
    <a href="https://www.baidu.com">百度</a>
    <HR>
    <a href="http://www.php.cn">php中文网</a>
    <HR>
    <a href="demo2.html">demo2</a>
    <HR>
    <a href="#">#</a>
    <HR>
    <div id="box">
        <a href="">php</a>
    </div>
</body>

</html>

运行实例 »

点击 "运行实例" 按钮查看在线实例

ScreenShot_20180811175428.png

实例

外部引入css样式

@charset utf-8 ;
#box2 {
    width: 300px;
    height: 100px;
    background: #0058ff;
}

运行实例 »

点击 "运行实例" 按钮查看在线实例


手写代码:

1.png

2.png

总结:

    1. 类选择器 class=""  css中表示为.xxx;

        id选择器 id=""  css中表示为#xxx

       后代选择器 用空格连接

    2.优先级问题

        2.1元素内嵌样式>文档内部样式>外部引入样式;

        2.2!important>id>类 伪类 属性>标签>通配>继承>浏览器默认

Correction status:qualified

Teacher's comments:
Statement of this Website
The copyright of this blog article belongs to the blogger. Please specify the address when reprinting! If there is any infringement or violation of the law, please contact admin@php.cn Report processing!
All comments Speak rationally on civilized internet, please comply with News Comment Service Agreement
0 comments
Author's latest blog post