.wt{width:100%;height:100%}ul,li{list-style:none}.banner_box{display:flex;align-items:center;justify-content:center;margin:auto;height:657px;text-align:center;background:url('/20003/2024/12/7/2006993/img/banner.png') no-repeat;background-size:100% 100%}@media(max-width:1700px){.banner_box{height:530px}}@media(max-width:1550px){.banner_box{height:480px}}@media(max-width:1400px){.banner_box{height:450px}}@media(max-width:1200px){.banner_box{height:450px}}.wrapper{width:1920px;margin:59px auto}.concert_content{display:flex;flex-wrap:wrap;justify-content:space-between}.content_left{width:600px;height:390px}.content_left img{width:100%;height:390px}