.overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:99999;display:none}.lds-dual-ring{width:80px;height:80px;position:fixed;top:50%;left:50%;z-index:99999;display:none}.lds-dual-ring:after{content:" ";display:block;width:64px;height:64px;margin:8px;border-radius:50%;border:6px solid #fff;border-color:#fff transparent #fff transparent;animation:lds-dual-ring 1.2s linear infinite}@keyframes lds-dual-ring{0%{transform:rotate(0)}to{transform:rotate(360deg)}}