#tab {overflow: hidden; zoom: 1 ;background: #fff; border-bottom: 1px solid #ccc; padding: 5px 0px;}
#tab li {float: left; height: 30px; font-size: 16px; cursor: pointer; line-height: 30px; padding: 0px 7px;}
#tab li.current {color: #fff; background: #51a420; font-weight: bold;}
#content ul {display: none; padding-left: 5px;}