/*导航信息*/
.nav_div{
    height:1.8rem;
    background: #fff;
    border-bottom: 1px solid #ebecf1;
    width:100%;
    display: -moz-box;
    display: -webkit-box;
    display: box;
}
.nav_div div{
    display:block;
    -moz-box-flex: 1;
    -webkit-box-flex: 1;
    box-flex: 1;
    text-align: center;
}
.nav_div a{
    display: inline-block;
    line-height: 1.8rem;
    margin:0 0.7rem;
    padding:0 0.2rem;
    font-size: 0.53rem;
    color:#666;
    height:100%;
}
.nav_div a.active{
    border-bottom:0.08rem solid #4e9af6;
}
.aaa{
    display:none;
}
div.aaa_block{
    display: block;
}