.preloader {
  position: fixed;
  z-index: 999;
  top: 0;
  left: 0;
  background: #fff;
  width: 100%;
  height: 100%;
  text-align: center;
}

.loader {
  position: relative;
  top: 50%;
  -webkit-transform: translate(0,-50%);
  -moz-transform: translate(0,-50%);
  -ms-transform: translate(0,-50%);
  -o-transform: translate(0,-50%);
  transform: translate(0,-50%);
  display: inline-block;
  background-color: rgb(10, 10, 10);
  width: 40px;
  height: 40px;
  -webkit-border-radius: 100%;
  -moz-border-radius: 100%;
  -ms-border-radius: 100%;
  -o-border-radius: 100%;
  border-radius: 100%;
  -webkit-animation: sk-scaleout 1.0s infinite ease-in-out;
  animation: sk-scaleout 1.0s infinite ease-in-out;
}

.loaded .preloader {
  visibility: hidden;
  opacity: 0;
  -webkit-transition: ease-out 0.2s;
  -moz-transition: ease-out 0.2s;
  -o-transition: ease-out 0.2s;
  transition: ease-out 0.2s;
}

@-webkit-keyframes sk-scaleout {
  0% { 
    -webkit-transform: scale(0) 
  }
  100% {
    -webkit-transform: scale(1.0);
    opacity: 0;
  }
}

@keyframes sk-scaleout {
  0% { 
    -webkit-transform: scale(0);
    transform: scale(0);
  } 
  100% {
    -webkit-transform: scale(1.0);
    transform: scale(1.0);
    opacity: 0;
  }
}