预览效果DIV+CSS
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>DIV+CSS布局多行多列</title>
<style type="text/css">
<!--
body {
font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; line-height: 20px; color: #000000;
}
#head{
margin-right:auto; margin-left:auto; width:770px; height:80px; background:#A66300;
}
.nav{
clear:both; margin-right:auto; margin-left:auto; width:770px; height:25px; line-height:25px; background:#415800;
}
#main_box{
/*正文区大容器*/
width:770px; margin-right:auto; margin-left:auto; background:#EFEFEF;
}
.row{
/*定义每行*/
width:100%; clear:both;
}
.left,.right{ float:left; width:150px; background:#A6A6A6;
}
.right{ float:right;}
.left2{
/*用在四列布局上*/
float:left; width:235px; background:#333; color:#FFF;
}
.left3{
/*用在五列布局上*/
border-right:1px solid #FFF; width:153px; background:#888; float:left;
}
.middle{
width:470px; background:#6699CC; float:left;
}
#foot{
margin-right:auto; margin-left:auto; width:770px; background:#A66300; clear:both;
}
-->
</style>
</head>
<body>
<div id="head"></div>
<div class="nav">nav</div>
<!--内容区开始-->
<div id="main_box">
<!--三列左侧-->
<div class="row">
<div class="left"><p>.left{<br />float:left;<br />width:150px;<br />background:#A6A6A6;<br />}</p></div>
<div class="middle"><p>.middle{<br />width:470px;<br />background:#6699CC;<br />float:left;<br />}</p></div>
<div class="right"><p>.right{ <br />float:right;<br />width:150px;<br />background:#999;<br />} </p></div>
</div>
<!--三列结束-->
<div class="nav">nav</div>
<!--四列开始-->
<div class="row">
<div class="left2"> <p>四列的第一列</p> <p> </p></div>
<div class="left"><p>四列的第二列</p><p> </p></div>
<div class="left2"> <p>四列的第三列</p> <p> </p></div>
<div class="right"> <p>四列的第四列</p> <p> </p></div>
</div>
<!--四列结束-->
<div class="nav">nav</div>
<!--五列开始-->
<div class="row">
<div class="left3"> <p>这是五列的第一列</p> <p> </p> <p> </p></div>
<div class="left3"> <p>这是五列的第二列</p> <p> </p> <p> </p></div>
<div class="left3"> <p>这是五列的第三列</p> <p> </p> <p> </p></div>
<div class="left3"> <p>这是五列的第四列</p> <p> </p> <p> </p></div>
<div class="left3"> <p>这是五列的第五列</p> <p> </p> <p> </p></div>
</div>
</div>
<!--尾部区-->
<div id="foot">
#foot{<br /> margin-right:auto;<br /> margin-left:auto;<br /> width:770px; <br /> background:#A66300;<br /> clear:both;<br /> }
</div>
<!--End-->
</body>
</html> | 
