#loading-screen{
    display: flex;
    justify-content: center;
    z-index: 999;
    width: 100%;
    height: 100%;
}

#loader {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border-top: 3px solid #fff;
    border-right: 3px solid transparent;
    margin: 0 auto;
    position: absolute;
    top: 40%;
    transform: translate(0, -50%);
    -webkit-animation: rotation 2s linear infinite;
            animation: rotation 2s linear infinite;
}

@-webkit-keyframes rotation {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }
  @keyframes rotation {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }