CSS题目 子元素决定父元素的大小

要求三个面板(有指定宽度)并排,面板中有内容,内容的宽由标题确定,并且居中对齐,内容的其他段落与标题左对齐。

<div>   
      <center class="float_left">
            <span>
                <h2>这个比较短
                    <P>2013</p>
                    <p>2013</p>
                    <p>2013</p>
                </h2>
            </span>
        </center>
        <center class="float_left">
            <span>
                <h2>让父元素的宽度由子元素决定
                    <P>2013</p>
                    <p>2013</p>
                    <p>2013</p>
                </h2>
            </span>
        </center>
        <center class="float_left">
            <span>
                <h2>这个的长度也不一样
                    <P>2013</p>
                    <p>2013</p>
                    <p>2013</p>
                </h2>
            </span>
        </center>
  </div>
.float_left{
     float:left;
     width:350px;
     height:200px;
     border:1px solid #cdcdcd;
 }
 .float_left span{
     display:inline-block;
 }
 .float_left h2{
     margin:0;
     color:white;
     text-align: left;
     height:200px;
     background: orange;
 }
 .float_left h2 p{
     font-size: 12px;
     color:white;
 }

data:text/html,<style> article { display: -webkit-flex; background: rgba(255, 0, 0, 0.2) } div { width: 33.33%; border-right: green solid; } section { background: rgba(0, 0, 255, 0.2); margin: auto; width: -webkit-max-content; } </style><article><div><section><h1>Who We Are</h1><ol><li><li>ttttttttttttttttttttt<li></ol></section></div><div><section><h1>How We Operate</h1><ol><li><li><li></ol></section></div><div><section><h1>Support</h1><ol><li><li><li></ol></section></div></article>
data:text/html,<style> article { display: -webkit-flex; background: rgba(255, 0, 0, 0.2) } div { width: 33.33%; border-right: green solid; } section { background: rgba(0, 0, 255, 0.2); margin: auto; display: table } </style><article><div><section><h1>Who We Are</h1><ol><li><li>rrrrrrrrrrrr<li></ol></section></div><div><section><h1>How We Operate</h1><ol><li><li><li></ol></section></div><div><section><h1>Support</h1><ol><li><li><li></ol></section></div></article>

 
 
标签: css
原文地址:https://www.cnblogs.com/Leo_wl/p/2811500.html