div.loading{text-align:center}div.loading img{animation-name:roll;animation-duration:2.5s;animation-iteration-count:infinite}div.loading img#oulingchess{width:min(75vw,70vh)}div.loading{overflow:hidden}@-webkit-keyframes roll{0%{-webkit-transform:rotate(0)}to{-webkit-transform:rotate(360deg)}}@-moz-keyframes roll{0%{-moz-transform:rotate(0)}to{-moz-transform:rotate(360deg)}}@keyframes roll{0%{transform:rotate(0)}to{transform:rotate(360deg)}}