老师帮我看看，这样可以吗？

来源：4-7 编程练习

慕少8534263

2019-04-29 16:33:31

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>display属性</title>
        <style type="text/css">
          /*样式补充*/
          div,h3,ul,li{
              margin:0px;
              padding:0px;
              text-align:center;
              font-family:"宋体";
          }
          li{
              list-style:none;
            
          }
          ul{
              display:none;
          }
          .big{
              width:155px;
              border:1px #e1e1e1 solid;
              margin:30px auto;
          }
          h3{
              border-bottom:1px #e1e1e1 solid;
              background-color:#eee;
              padding:3px;
          }
          li{
              font-size:15px;
              line-height:1.5em;
              padding:3px;
          }
          .div1:hover .elec{
              display:block;
          }
          .div2:hover .wash{
              display:block;
          }
          .div3:hover .clothes{
              display:block;
          }
          
        </style>
    </head>
    <body>
    <div class="big">
        <div class="div1">
            <h3>家电</h3>
            <ul class="elec">
                <li>冰箱</li>
                <li>洗衣机</li>
                <li>空调</li>
            </ul>
        </div>
        <div class="div2">
            <h3>洗护</h3>
            <ul class="wash">
                <li>洗衣液</li>
                <li>消毒液</li>
                <li>柔顺剂</li>
            </ul>
        </div>
        <div  class="div3">
            <h3>衣物</h3>
             <ul class="clothes">
                <li>衬衫</li>
                <li>裤子</li>
                <li>卫衣</li>
            </ul>
        </div>
      </div>
</body>
</html>

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