.lo-wrap {
   position: fixed;
   z-index: 999999;
   margin: auto;
   top: 0;
   left: 0;
   bottom: 0;
   right: 0;
 

}
 

.lo-wrap:before {
   content: '';
   display: block;
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background-color: rgba(255,255,255,0.6);
}
 

.lo-wrap:not(:required) {
   font: 0/0 a;
   color: transparent;
   text-shadow: none;
   background-color: rgba(255, 255, 255, 0.5803921568627451);
   border: 0;
}
 

.lo-wrap:not(:required):after {
   content: '';
   display: block;
   font-size: 10px;
   width: 1em;
   height: 1em;
   position:fixed;
   top:50%;
   left:50%;
   margin-top: -0.5em;
   margin-left: -0.5em;
   -webkit-animation: lo-spin 1500ms infinite linear;
   -moz-animation: lo-spin 1500ms infinite linear;
   -ms-animation: lo-spin 1500ms infinite linear;
   -o-animation: lo-spin 1500ms infinite linear;
   animation: lo-spin 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 lo-spin {
   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 lo-spin {
   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 lo-spin {
   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 lo-spin {
   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);
   }
}