#preloader-background {
  background: #fff none repeat scroll 0 0;
  height: 100%;
  left: 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 99999
}

#preloader-background .preloader-wrapper {
  left: 50%;
  position: absolute;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%)
}

.sk-spinner-pulse {
  width: 40px;
  height: 40px;
  margin: 40px auto;
  background-color: #333;
  border-radius: 100%;
  -webkit-animation: sk-pulseScaleOut 1s infinite ease-in-out;
  animation: sk-pulseScaleOut 1s infinite ease-in-out
}

@-webkit-keyframes sk-pulseScaleOut {
  0% {
      -webkit-transform: scale(0);
      transform: scale(0)
  }
  100% {
      -webkit-transform: scale(1);
      transform: scale(1);
      opacity: 0
  }
}

@keyframes sk-pulseScaleOut {
  0% {
      -webkit-transform: scale(0);
      transform: scale(0)
  }
  100% {
      -webkit-transform: scale(1);
      transform: scale(1);
      opacity: 0
  }
}