关于dreamweaver的css和div布局代码

.max{ width:800px; height:auto;} .top{ width:800px; height:120px; border:1px solid red; background:#6CC} .center{ width:800px; height:355px; border:1px solid #393; margin-top:10px;} .center-top{ width:800px; height:175px; } .center-bottom{