网页布局（左边固定，右边自适应）
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="Generator" content="EditPlus®">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<title>经典布局之左边固定宽度，右边自适应</title>
<style>
.fixleft{
float:left;
width:300px;
height:300px;
background-color:blue;
}
.autoright{
margin-left:300px;/*或者overflow:auto*/
height:300px;
background-color:red;
}
</style>
</head>
<body>
<div class='fixleft'>
</div>
<div class='autoright'>
</div>
</body>
</html>
