.ms-preload {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #eee;
    z-index: 50000;
    height: 100%;
    width: 100%
}

.spinner {
  width: 60px;
  height: 60px;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  text-align: center;
  animation: sk-rotate 2.0s infinite linear
}

.dot1, .dot2 {
  width: 60%;
  height: 60%;
  display: inline-block;
  position: absolute;
  top: 0;
  background-color: #607d8b;
  border-radius: 100%;
  animation: sk-bounce 2.0s infinite ease-in-out
}

.dot2 {
  top: auto;
  bottom: 0;
  animation-delay: -1.0s
}

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

@keyframes sk-bounce {
  0%, 100% {
    transform: scale(0);
    -webkit-transform: scale(0)
  }
  50% {
    transform: scale(1);
    -webkit-transform: scale(1)
  }
}