#loader{ width: 100%; height: 100%; background: var(--color-bg); position: fixed; top: 0px; left: 0px; z-index: 20000; display: flex; align-items: center; justify-content: center;}
/* HTML: <div class="loader"></div> */
.loader {
  width: 50px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 8px solid #000;
  animation:
    l20-1 0.8s infinite linear alternate,
    l20-2 1.6s infinite linear;
}
@keyframes l20-1{
   0%    {clip-path: polygon(50% 50%,0       0,  50%   0%,  50%    0%, 50%    0%, 50%    0%, 50%    0% )}
   12.5% {clip-path: polygon(50% 50%,0       0,  50%   0%,  100%   0%, 100%   0%, 100%   0%, 100%   0% )}
   25%   {clip-path: polygon(50% 50%,0       0,  50%   0%,  100%   0%, 100% 100%, 100% 100%, 100% 100% )}
   50%   {clip-path: polygon(50% 50%,0       0,  50%   0%,  100%   0%, 100% 100%, 50%  100%, 0%   100% )}
   62.5% {clip-path: polygon(50% 50%,100%    0, 100%   0%,  100%   0%, 100% 100%, 50%  100%, 0%   100% )}
   75%   {clip-path: polygon(50% 50%,100% 100%, 100% 100%,  100% 100%, 100% 100%, 50%  100%, 0%   100% )}
   100%  {clip-path: polygon(50% 50%,50%  100%,  50% 100%,   50% 100%,  50% 100%, 50%  100%, 0%   100% )}
}
@keyframes l20-2{ 
  0%    {transform:scaleY(1)  rotate(0deg)}
  49.99%{transform:scaleY(1)  rotate(135deg)}
  50%   {transform:scaleY(-1) rotate(0deg)}
  100%  {transform:scaleY(-1) rotate(-135deg)}
}