body html{margin:0;padding:0}body .main-mw,body html{background:#fff}.container{margin:0 auto;width:100%;height:3275px;background:url(/bog-bsdt/static/resource/img/banner.73f18990.jpg) no-repeat 50%}.container .content{position:relative;width:1200px;margin:0 auto;height:3275px}.container .content .btn-center{position:absolute;top:579px;left:500px;width:200px;height:82px;background:url(/bog-bsdt/static/resource/img/btn.3139e5a5.png) no-repeat 50%;background-size:100% 100%;cursor:pointer}.container .content .btn-center a{display:block;height:100%;width:100%}.container .content .btn-center:hover{background:url(/bog-bsdt/static/resource/img/btn-hover.8857b141.png) no-repeat 50%}.container .content .ewm{position:absolute;top:750px;left:10px}