.preloader{display:none;background:url(../img/preloader_1.gif) 50% 50% no-repeat #fff;position:absolute;top:0;bottom:0;left:0;right:0;z-index:9995;opacity:.5}.error{padding:0!important;color:red}button:disabled{outline:0;background:#fff}@keyframes spinner{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}*,::after,::before{box-sizing:border-box}