两栏布局

<!DOCTYPE html>
<html>
 <head>
  <meta charset="UTF-8">
  <title></title>
  <style>
   *{
    margin: 0;
    padding: 0;
   }
   .right{
    position: absolute;
     100px;
    height: 100px;
    background: pink;
    right: 0;
    opacity: 0.5;
   }
   .left{
    height: 100px;
    background: #123;
    margin-right: 100px;
   }
  </style>
 </head>
 <body>
  <div class="right"></div>
  <div class="left"></div>
 </body>
</html>

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原文地址：https://www.cnblogs.com/gxywb/p/10061637.html