.loader {
    top: 50%;
    left: 50%;
    margin-left: -3em;
    margin-top: -3em;
   font-size: 10px;
   position: absolute;
   text-indent: -9999em;
   border-top: 1em solid rgb(218, 218, 218);
   border-right: 1em solid rgb(171, 171, 171);
   border-bottom: 1em solid rgba(121, 121, 121, 0.99);
   border-left: 1em solid rgba(218, 218, 218, 0);
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation: load8 1.1s infinite linear;
    -moz-animation: load8 1s infinite linear;
    -ms-animation: load8 1s infinite linear;
    -o-animation: load8 1s infinite linear;
    animation: load8 1s infinite linear;
     z-index: 9999;
}

.loader-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    bottom: 0;
    left: 0;
    background: rgba(54, 62, 69, 0.13);
    z-index: 9999;
}
.loader,
.loader:after {
    position: absolute;
    -ms-border-radius: 50%;
    border-radius: 50%;
    width: 6em;
    height: 6em;
    top: 50%;
}

@-webkit-keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}