4-3编程练习麻烦老师检查下看看还有没有能优化的地方

来源：4-3 编程练习

Snowy丶

2018-03-08 17:01:01

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
<title></title>
<style type="text/css">
   *{
       margin:0;
       padding:0;
   }
  .content{
      width:1903px;
      height:4033px;
      background-image:url(http://climg.mukewang.com/59c9f7ce0001839219034033.png);
  }
  .left,.right{
      width:224px;
      height:364px;
      position:fixed;
      top:50%;
      margin-top:-182px;

  }
  .left{
      left:0;
      background-image:url(http://climg.mukewang.com/5a3383d00001a3dd02240364.png);
  }
  .right{
      right:0;
      background-image:url(http://climg.mukewang.com/5a3383c70001f1b702240364.png);
  }
</style>
</head>
<body class="content">
        <div class="left"></div>
        <div class="right"></div>
</body>
</html>

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