.loading{position:fixed;z-index:9999999999;height:2em;width:2em;overflow:show;margin:auto;top:0;left:0;bottom:0;right:0;}
.loading:before{content:'';display:block;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0, 0, 0, 0.3);}
.loading:not(:required){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 1500ms infinite linear;-moz-animation:spinner 1500ms infinite linear;-ms-animation:spinner 1500ms infinite linear;-o-animation:spinner 1500ms infinite linear;animation:spinner 1500ms infinite linear;border-radius:0.5em;-webkit-box-shadow:rgba(0, 0, 0, 0.75) 1.5em 0 0 0, rgba(0, 0, 0, 0.75) 1.1em 1.1em 0 0, rgba(0, 0, 0, 0.75) 0 1.5em 0 0, rgba(0, 0, 0, 0.75) -1.1em 1.1em 0 0, rgba(0, 0, 0, 0.5) -1.5em 0 0 0, rgba(0, 0, 0, 0.5) -1.1em -1.1em 0 0, rgba(0, 0, 0, 0.75) 0 -1.5em 0 0, rgba(0, 0, 0, 0.75) 1.1em -1.1em 0 0;box-shadow:rgba(0, 0, 0, 0.75) 1.5em 0 0 0, rgba(0, 0, 0, 0.75) 1.1em 1.1em 0 0, rgba(0, 0, 0, 0.75) 0 1.5em 0 0, rgba(0, 0, 0, 0.75) -1.1em 1.1em 0 0, rgba(0, 0, 0, 0.75) -1.5em 0 0 0, rgba(0, 0, 0, 0.75) -1.1em -1.1em 0 0, rgba(0, 0, 0, 0.75) 0 -1.5em 0 0, rgba(0, 0, 0, 0.75) 1.1em -1.1em 0 0;}
@-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);}
}