.grace-dsc-web-layout-box{width:100%}.index_box{position:relative}.index_box>img{width:100%;display:block}@keyframes breathe{0%{transform:translate(-50%) scale(1)}50%{transform:translate(-50%) scale(1.1)}to{transform:translate(-50%) scale(1)}}.index_box .btn{position:absolute;bottom:10%;left:50%;transform:translate(-50%);animation:breathe 2s ease-in-out infinite}.footer{width:100%;position:absolute;bottom:0;left:0;color:#fff;line-height:60px;font-size:12px;text-align:center}