/* Absolute Center Spinner */
         .loading {
         position: fixed;
         z-index: 999;
         height: 2em;
         width: 2em;
         overflow: show;
         margin: auto;
         top: 0;
         left: 0;
         bottom: 0;
         right: 0;
         }
         /* Transparent Overlay */
         .loading:before {
         content: '';
         display: block;
         position: fixed;
         top: 0;
         left: 0;
         width: 100%;
         height: 100%;
         background: radial-gradient(rgba(20, 20, 20,.8), rgba(0, 0, 0, .8));
         background: -webkit-radial-gradient(rgba(20, 20, 20,.8), rgba(0, 0, 0,.8));
         }
         /* :not(:required) hides these rules from IE9 and below */
         .loading:not(:required) {
         /* hide "loading..." text */
         font: 0/0 a;
         color: transparent;
         text-shadow: none;
         background-color: transparent;
         border: 0;
         }
         .loading:not(:required):after {
         content: '';
         display: block;
         font-size: 10px;
         width: 1em;
         height: 1em;
         margin-top: -0.5em;
         -webkit-animation: spinner 150ms infinite linear;
         -moz-animation: spinner 150ms infinite linear;
         -ms-animation: spinner 150ms infinite linear;
         -o-animation: spinner 150ms infinite linear;
         animation: spinner 150ms infinite linear;
         border-radius: 0.5em;
         -webkit-box-shadow: rgba(255,255,255, 0.75) 1.5em 0 0 0, rgba(255,255,255, 0.75) 1.1em 1.1em 0 0, rgba(255,255,255, 0.75) 0 1.5em 0 0, rgba(255,255,255, 0.75) -1.1em 1.1em 0 0, rgba(255,255,255, 0.75) -1.5em 0 0 0, rgba(255,255,255, 0.75) -1.1em -1.1em 0 0, rgba(255,255,255, 0.75) 0 -1.5em 0 0, rgba(255,255,255, 0.75) 1.1em -1.1em 0 0;
         box-shadow: rgba(255,255,255, 0.75) 1.5em 0 0 0, rgba(255,255,255, 0.75) 1.1em 1.1em 0 0, rgba(255,255,255, 0.75) 0 1.5em 0 0, rgba(255,255,255, 0.75) -1.1em 1.1em 0 0, rgba(255,255,255, 0.75) -1.5em 0 0 0, rgba(255,255,255, 0.75) -1.1em -1.1em 0 0, rgba(255,255,255, 0.75) 0 -1.5em 0 0, rgba(255,255,255, 0.75) 1.1em -1.1em 0 0;
         }
         /* Animation */
         @-webkit-keyframes spinner {
         0% {
         -webkit-transform: rotate(0deg);
         -moz-transform: rotate(0deg);
         -ms-transform: rotate(0deg);
         -o-transform: rotate(0deg);
         transform: rotate(0deg);
         }
         100% {
         -webkit-transform: rotate(360deg);
         -moz-transform: rotate(360deg);
         -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
         transform: rotate(360deg);
         }
         }
         @-moz-keyframes spinner {
         0% {
         -webkit-transform: rotate(0deg);
         -moz-transform: rotate(0deg);
         -ms-transform: rotate(0deg);
         -o-transform: rotate(0deg);
         transform: rotate(0deg);
         }
         100% {
         -webkit-transform: rotate(360deg);
         -moz-transform: rotate(360deg);
         -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
         transform: rotate(360deg);
         }
         }
         @-o-keyframes spinner {
         0% {
         -webkit-transform: rotate(0deg);
         -moz-transform: rotate(0deg);
         -ms-transform: rotate(0deg);
         -o-transform: rotate(0deg);
         transform: rotate(0deg);
         }
         100% {
         -webkit-transform: rotate(360deg);
         -moz-transform: rotate(360deg);
         -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
         transform: rotate(360deg);
         }
         }
         @keyframes spinner {
         0% {
         -webkit-transform: rotate(0deg);
         -moz-transform: rotate(0deg);
         -ms-transform: rotate(0deg);
         -o-transform: rotate(0deg);
         transform: rotate(0deg);
         }
         100% {
         -webkit-transform: rotate(360deg);
         -moz-transform: rotate(360deg);
         -ms-transform: rotate(360deg);
         -o-transform: rotate(360deg);
         transform: rotate(360deg);
         }
         }