复制代码代码如下:
body{margin:0px;} //整个网页左右无空白
#side { background: #99FF99; height: 300px; width: 120px; float: left; }
#side1 { background: #99FF99; height: 300px; width: 120px; float: right; }
#main { background: #99FFFF; height: 300px; margin:0 120px; }
ddddddd
ffffff
vvvvvvvvvvv
