.login-banner,.img{width:100%;height:calc(100% - 165px)}.banner_img_box{width:100%;height:100%}.active_banner{display:block !important}.login-banner .img{position:absolute;display:none;min-width:1280px}.logo{height:100%}.login-banner .img:nth-of-type(1){background-size:100% 100%}.login-banner .img:nth-of-type(2){background-size:100% 100%}.login-banner .img:nth-of-type(3){background-size:100% 100%}.index_box{position:absolute;bottom:90px;left:30px;z-index:999;overflow:hidden}.index{display:block;float:left;width:20px;height:4px;background:rgba(255,255,255,0.5);margin-right:10px;cursor:pointer}.index:last-child{margin:0}.active_index{background:#fff}