.loader {
    width: 50px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: repeating-conic-gradient(#ED1C24 0 90deg,#ccc 0 180deg);
    animation: l21 1s infinite linear;
  }
  @keyframes l21 {
    100% {transform: rotate(.5turn)}
  }