.waiting{
    position: fixed;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background-color: rgb(46, 40, 40);
    opacity: 0.7;
  }

.loader {
    width: 50px;
    aspect-ratio: 1;
    border-radius: 50%;
    border: 8px solid #0000;
    border-right-color: yellow;
    position: absolute;
    animation: l24 1s infinite linear;
    top: 50%;
    left: 50%;
  }
  .loader:before,
  .loader:after {
    content: "";
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: inherit;
    animation: inherit;
    animation-duration: 2s;
  }
  .loader:after {
    animation-duration: 4s;
  }
  @keyframes l24 {
    100% {transform: rotate(1turn)}
  }