SunLe'Blog---孙乐

<style>
body{margin:0}
  }
#left {
       background-color: #C9C9C9;
       border: 2px solid #797979;
       width:200px;
       height: 100px;
       position: absolute;
       top: 0px;
       left: 0px;
}
#center {
       background-color: #C9C9C9;
       border: 2px solid #797979;
       height: 100px;
       margin-left: 200px;
       margin-right: 200px;
}
#right {
       background-color: #C9C9C9;
       border: 2px solid #797979;
       width:200px;      
       height: 100px;
       position:absolute;
       top: 0px;
       right: 0px;
}
</style>
<div id="left">左列</div>
<div id="center">中列</div>
<div id="right">右列</div>