1. left left left
1 #wrapper { 2 float: left; 3 width: 100%; 4 margin-left: -200px; 5 } 6 #navigation { 7 float: left; 8 width: 200px; 9 } 10 #extra { 11 float: left; 12 width: 200px; 13 } 14 15 div#footer{clear:both;width:100%}
[css layout][23]Two columns liquid, side fixed
原文：http://www.cnblogs.com/qiudeqing/p/3536886.html