.banner-cate {width:100%;float:left;position:relative}
.banner-cate img{width:100%;height:auto}
.banner-cate h2{padding:10px 0px;color:#fff;width:1080px;position:absolute;top:30%;left:0;right:0;font-size:40px;text-transform:uppercase;font-weight:bold;}
.gioithieu {text-align:center;color:#439bbe}
.gioithieu h2{color:#439bbe}