.loader {
    position: absolute !important;
    width: 5em;
    height: 5em;
    top: 50%;
    left: 50%;
    margin-top: -2.5em;
    margin-left: -2.5em;
    font-size: 10px;
    text-indent: -9999em;
    border-top: 0.1em solid rgba(0, 0, 0, 0.2);
    border-right: 0.1em solid rgba(0, 0, 0, 0.2);
    border-bottom: 0.1em solid rgba(0, 0, 0, 0.2);
    border-left: 0.1em solid #111;
    border-radius: 50%;
    overflow: hidden;
​
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation: load8 1.1s infinite linear;
    animation: load8 1.1s infinite linear;
}
.loader:after {
 border-radius: 50%;
 width: 6em;
 height: 6em;
}
@-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);
 }
}