*{ margin:0px; padding:0px;}
body 
{
    line-height:1.5;
    font-family:微软雅黑;
}
a{ text-decoration:none;}
ul,li{ list-style:none; }

.tabs{ width:18%; position:fixed; left:0px; top:10px; padding:20px; }

.tabs a {
    width: 100%;
    height: 60px;
    text-align: center;
    line-height: 60px;
    display: block;
    color: #333333;
    font-size: 16px;
    margin-bottom: 15px;
}
.tabs a:hover, .tabs a.active {
    background: #747a52;
    color: #fff;
}
.content{ width:76%; float:right; }
#s1{ height:800px; background:#d2dba1; padding:20px; }
#s2{ height:800px; background:#f4bebe; padding:20px; }
#s3{ height:800px; background:#8d8181; padding:20px; }
#s4{ height:800px; background:#125154; padding:20px; }