#loading {
  display: flex;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999999999;
  background: rgba(0, 0, 0, 0.5);
}
#loading .loader {
    position: relative;
    margin: auto;
    box-sizing: border-box;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid rgba(0, 0, 0, 0.1);
    transform-origin: 50% 50%;
    transform: perspective(200px) rotateX(66deg);
    animation: spinner-wiggle 1.2s infinite;
  }
  #loading .loader:before,
  .loader:after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    box-sizing: border-box;
    border: 4px solid #0000;
    animation: spinner-spin 1.2s cubic-bezier(0.6, 0.2, 0, 0.8) infinite,
      spinner-fade 1.2s linear infinite;
  }
  #loading .loader:before {
    border-top-color: #fff;
  }
  #loading .loader:after {
    border-top-color: #ff3d00;
    animation-delay: 0.4s;
  }

  @keyframes spinner-spin {
    100% { transform: rotate(360deg)}
  }
  @keyframes spinner-fade {
    25%, 75% { opacity: 0.1}
    50% { opacity: 1 }
  }