#circleSpinner {
    color: #007bff;
    font-size: 90px;
    text-indent: -9999em;
    overflow: hidden;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    margin: 72px auto;
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation: spinner-anim 1.7s infinite ease, round 1.7s infinite ease;
    animation: spinner-anim 1.7s infinite ease, round 1.7s infinite ease;
    position: fixed;
    z-index: 150;
    left: 0;
    right: 0;
    top: 40%;
}

.hidden {
    display: none !important;
}

#overlaySpinner {
    position: fixed;
    z-index: 100;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

@-webkit-keyframes spinner-anim {
     0% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }

     5%, 95% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }

     10%, 59% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em, -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em, -0.297em -0.775em 0 -0.477em;
     }

     20% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em, -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em, -0.749em -0.34em 0 -0.477em;
     }

     38% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em, -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em, -0.82em -0.09em 0 -0.477em;
     }

     100% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }
 }

@keyframes spinner-anim {
     0% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }

     5%, 95% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }

     10%, 59% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em, -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em, -0.297em -0.775em 0 -0.477em;
     }

     20% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em, -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em, -0.749em -0.34em 0 -0.477em;
     }

     38% {
         box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em, -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em, -0.82em -0.09em 0 -0.477em;
     }

     100% {
         box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
     }
 }

@-webkit-keyframes round {
     0% {
         -webkit-transform: rotate(0deg);
         transform: rotate(0deg);
     }

     100% {
         -webkit-transform: rotate(360deg);
         transform: rotate(360deg);
     }
 }

@keyframes round {
     0% {
         -webkit-transform: rotate(0deg);
         transform: rotate(0deg);
     }

     100% {
         -webkit-transform: rotate(360deg);
         transform: rotate(360deg);
     }
 }