.loader{background-color:rgba(0,0,0,.1);display:none;height:100%;left:0;position:fixed;top:0;width:100%;z-index:5999}.loader>span{animation:spin 2s linear infinite;border:6px solid #f3f3f3;border-radius:50%;border-top-color:#454545;height:50px;left:50%;margin-left:-1em;position:fixed;top:50%;width:50px;z-index:6000}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}