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



.box {
    width: 600px; 
    position: relative;
    margin:40px auto;
}
 
ul.tabbtn{
	position: relative;
	border-bottom: 1px solid #e5e5e5;
	overflow:hidden;
}
ul.tabbtn li{
	float: left;
	width: 160px;
	text-align: center;
}
 
ul.tabbtn li a{
	font-size: 20px;
	line-height: 40px;
	color:#000;
}
ul.tabbtn li:hover a{
	color: #000000;
	font-weight: bold
}
ul.tabbtn li.current a {
    color: #000000;
    font-weight: bold;
}
.tablist{ padding:10px; }
.tablist p{ margin-bottom:10px; }