.about_tab .about_nav{
	overflow: hidden;
}
.about_tab .about_nav h2{
	float: left;
	margin-right: 30px;
	cursor: pointer;
	position: relative;
}
.about_tab .about_nav h2 span{
    position: absolute;
    bottom: -10px;
    width: 100%;
    height: 6px;
    left: 0px;
    background: #0081D3;
    border-radius: 3px;
    display: none;
}
.about_tab .about_nav .active{
	color: #0081D3;
}
.about_tab .about_nav .active span{
	display: block;
}