<div class="holder ">
  <div class="preloader"></div></div></div>
</div>

.holder {
  position: fixed;
  left: 0%;
  top: 0%;
  right: 0%;
  bottom: 0%;
  width: 100vw;
  height: 100vh;
  background-color: #0C0C0C;
  z-index: 99999;
  transition: all 1s linear;
}
.unhold {
  opacity: 0;
pointer-events: none;
  visibility: hidden;
}
.preloader {
  position: absolute;
  width: 10%;
  height: 0%;
  padding-bottom: 10%;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}
.preloader div {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  overflow: hidden;
  animation: animatePreloader 1s infinite linear;
  transform-origin: 50% 100%;
}
.preloader div:before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  left: 50%;
  top: 50%;
  transform: translateX(-50%);
  border: 5px solid #FFFFFF;
  border-radius: 50%;
  box-sizing: border-box;
}
.preloader div:nth-child(2) {
  width: 60%;
  height: 60%;
  top: 20%;
  animation: animatePreloader 0.9s infinite linear;
}
@keyframes animatePreloader {
  0% {
    transform: translateX(-50%) translateY(-50%) rotateZ(0deg);
  }
  100% {
    transform: translateX(-50%) translateY(-50%) rotateZ(360deg);
  }
}
</style>