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

.tab a {
    font-size: 20px;  
    padding: 15px;
    margin-right: 10px;
    display:inline-block;
    color:#000000;
}

.tab a.active 
{
    font-size: 20px;
    font-weight: bold;
    color: #000000;
}

.tabcon
{
    padding: 15px; 
}

.tabcon ul 
{
    display: none;
}

.tabcon ul:first-child {
    display: block;
}

.tabcon ul li
{
    line-height:2; 
}