body{margin:0;padding:0}#launch-root{background:#505050;width:100%}#launch-root,.launch-box{height:100%;overflow:hidden;position:absolute;top:0;z-index:9999}.launch-box{background:#fff;display:block;left:50%;transform:translateX(-50%)}.launch-loading{animation:circle .75s linear infinite;border:2px solid #409eff;border-radius:100%;border-top-color:transparent;height:30px;left:50%;margin-left:-15px;margin-top:-15px;position:absolute;top:50%;width:30px}@keyframes circle{0%{transform:rotate(0)}to{transform:rotate(1turn)}}