.loading,
.loading::before,
.loading::after {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-left-color: rgba(255, 255, 255, 0.1);
  -webkit-border-radius: 999px;
  -moz-border-radius: 999px;
  border-radius: 999px;
}
.loading {
  margin: -25px 0 0 -25px;
  height: 50px;
  width: 50px;
  -webkit-animation: animation-rotate 1000ms linear infinite;
  -moz-animation: animation-rotate 1000ms linear infinite;
  -o-animation: animation-rotate 1000ms linear infinite;
  animation: animation-rotate 1000ms linear infinite;
}
.loading::before {
  content: "";
  margin: -23px 0 0 -23px;
  height: 44px;
  width: 44px;
  -webkit-animation: animation-rotate 1000ms linear infinite;
  -moz-animation: animation-rotate 1000ms linear infinite;
  -o-animation: animation-rotate 1000ms linear infinite;
  animation: animation-rotate 1000ms linear infinite;
}
.loading::after {
  content: "";
  margin: -29px 0 0 -29px;
  height: 56px;
  width: 56px;
  -webkit-animation: animation-rotate 2000ms linear infinite;
  -moz-animation: animation-rotate 2000ms linear infinite;
  -o-animation: animation-rotate 2000ms linear infinite;
  animation: animation-rotate 2000ms linear infinite;
}
@-webkit-keyframes animation-rotate {
  100% {
    -webkit-transform: rotate(360deg);
  }
}
@-moz-keyframes animation-rotate {
  100% {
    -moz-transform: rotate(360deg);
  }
}
@-o-keyframes animation-rotate {
  100% {
    -o-transform: rotate(360deg);
  }
}
@keyframes animation-rotate {
  100% {
    transform: rotate(360deg);
  }
}