css 多个不定数量提交按钮居中显示,纯css解决_html/css_WEB-ITnose

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Release: 2016-06-24 11:37:22
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前几天在公司修改一个css 多个按钮居中问题,其实这样的问题很多前端程序员都遇到过,举个例子吧:

在一行中有三个按钮或是两个按钮...个数不定,然后间距固定;然后就有很多人把所有按钮放到一个div中,把div置为margin:10px auto(距上10像素,居中,然后又给了一个固定宽度,按钮放在这个div中,这样按钮就不能具体居中了) ,也不通用如果按钮减少到两个 或一个怎么办,

也有很多人用javascript 动态的算出宽度然后计算一大堆,并且很多时候比好用

错误代码:

 1 <!DOCTYPE html> 2 <html> 3 <head> 4     <meta charset="utf-8"> 5     <title></title> 6     <style type="text/css"> 7     .foot{width: 100%; height: 30px; border: 1px solid #d2d2d2;} 8     .foot .b{width:300px; margin: 3px auto;} 9     .foot .b .button{display: inline-block;line-height: 20px; background-color: #900; padding: 3px 5px; margin-left: 10px;}10     </style>11 </head>12 <body>13 <div class="foot">14     <div class="b">15         <a href="" class="button">提交</a>16         <a href="" class="button">提交</a>17         <a href="" class="button">提交</a>18     </div>19 </div>20 </body>21 </html>
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后来修改如下

<!DOCTYPE html><html><head>    <meta charset="utf-8">    <title></title>    <style type="text/css">    .foot{width: 100%; height: 30px; border: 1px solid #d2d2d2; text-align: center;}    .foot ul{display: inline; margin-left: -10px;}    .foot ul li{display: inline-block; margin-left: 10px; line-height: 30px;}    .foot ul li a{background-color: #900; color: #fff;line-height: 20px;padding: 3px 5px;}    </style></head><body><div class="foot">    <ul>        <li><a href="" class="button">提交</a></li>        <li><a href="" class="button">提交</a></li>        <li><a href="" class="button">提交</a></li>        <li><a href="" class="button">提交</a></li>    </ul>    </div></div></body></html>
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其实这些问题看上去很简单,单还是有很多初学者不能实现,很多人也行用javascript实现,其实完全没有必要

 

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