.preloader {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(to bottom, #8034eb, #5e36cb, #4233a9, #2b2d87, #1c2564, #192156, #161e49, #141a3c, #151c40, #171e44, #182049, #1a224d);
  z-index: 2;
  -webkit-transition: 1s all;
  transition: 1s all;
  opacity: 1;
}
.preloader .loader {
  width: 75px;
  height: 75px;
  border: 10px solid white;
  border-radius: 50%;
  border-top-color: #1a224d;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-animation: 1s spin infinite linear;
  animation: 1s spin infinite linear;
}

.hide {
  opacity: 0;
}
@-webkit-keyframes spin {
  0% {
    -webkit-transform: translate(-50%, -50%) rotate(0deg);
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    -webkit-transform: translate(-50%, -50%) rotate(360deg);
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
@keyframes spin {
  0% {
    -webkit-transform: translate(-50%, -50%) rotate(0deg);
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    -webkit-transform: translate(-50%, -50%) rotate(360deg);
    transform: translate(-50%, -50%) rotate(360deg);
  }
}