http://www.cnblogs.com/sosoft/p/3509977.html
1、两列布局
1.1、左列固定,右列自适应
#left{ 190px; float:left; }
#right{ margin-left:205px; }
1.2、右列固定,左列自适应
#left{ float:left; 100%; }
#right{ float:left; margin-left:-100px; 100px; }
2、三列布局
2.1、左右宽度固定,中间自适应
#left{ float:left; 200px; }
#middle{ margin:0 210px; }
#right{ float:right; 200px; }
2.2、中间宽度固定,左右自适应
这个有点复杂,有必要先贴html
<div class="wrap">
<div class="left">
<div class="leftWrap">left左列</div>
</div>
<div class="right">
<div class="rightWrap">right右列 http://www.cnblogs.com/sosoft/</div>
</div>
<div class="center">Center</div>
</div>
css样式:
.wrap{position:relative;overflow:hidden;100%}
.left{float:left;50%;margin-left:-400px;padding-left:200px; }
.leftWrap{margin-left:200px;background:#aaa;}
.right{float:right;50%;margin-right:-400px;padding-right:200px;}
.rightWrap{margin-right:200px;background:#aaa;}
.center{position:absolute;left:50%;margin-left:-200px;400px;background:#eee;}
3、上中下三行布局
html { height:100%; }
body { height:100%; }
/*如需满屏,则对html和body都设置height:100%*/
#top { position:absolute; left:10px;top:0px;right:10px;height:50px;}
#main { position:absolute; left:10px;top:60px;bottom:60px;right:10px;overflow:auto;}
#bottom { position:absolute; left:10px; bottom:0px; right:10px; height:50px;}xi
/*IE6下*/
#top { *height:50px; *margin-top:-60px; *margin-bottom:10px; *position:relative; *top:0; *right:0; *bottom:0; *left:0;}
#main { *height:100%; *margin-left:210px; _margin-left:207px; *position:relative; *top:0; *right:0; *bottom:0; *left:0;}
#bottom { *height:50px; *margin-top:10px; *position:relative; *top:0; *right:0; *bottom:0; *left:0;}