/* BASIC css start */
.top_img{
    text-align: center;
    margin-top: 60px;}
    
    
.tab{
    text-align: center;
    margin: 50px 0 70px;}
    

.tab a{display:inline-block; margin:0 5px}


.boarderUseInfo{
    padding:40px 0;
    margin:0 15px;
    overflow: hidden;
}

.boarderUseInfo ol li{
    position:relative;
    padding-left:15px;
    font-size:11px;
    color:#777;
    line-height:18px;
}

.boarderUseInfo ol li span{
    position:absolute;
    top:0;
    left:0;
    font-size:11px;
    line-height:18px;
    color:#111;
}

.boarderUseInfo ul{
    width:1000px;
    margin:0 auto;
    display:flex;
}

.boarderUseInfo ul li{
    flex:1;
    margin:0 3px 3px 0;
    float: left;
}

.boarderUseInfo ul li:nth-child(5n){
    margin-right:0;
}

.boarderUseInfo ul li a{
    display:block;
    line-height:40px;
    text-align:center;
    font-size:13px;
    background:#ededed;
}

.boarderUseInfo ul li.active a{
    background:#111;
    color:#fff;
}
/* BASIC css end */