div,ul,li{
 margin:0 auto;
 padding:0;
}
ul{
 list-style:none;
}
.main{
 clear:both;
 padding:8px;
 text-align:left;
}
/*第一种形式*/
#tabs0 {
 height: 200px;
 width: 400px;
 background-color: #ffffff;
 font-family:宋体;
 font-size:12px;
}
.menu0{
 width: 400px;
}
.menu0 li{
 display:block;
 float: left;
 padding: 4px 0;
 width:100px;
 text-align: center;
 cursor:pointer;
 background: #EAEAEA;
}
.menu0 li.hover{
 background: #164F3C;
}
#main0 ul{
 display: none;
}
#main0 ul.block{
 display: block;
}