#loader {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    position: fixed;
    background: rgba(141, 141, 141, 0.7);
    backdrop-filter: blur(6px);
    z-index: 9999;
    top: 0;
    left: 0;
}
.loader {
  width: 60px;
  aspect-ratio: 2;
  --_g: no-repeat radial-gradient(circle closest-side,#3cfe93 90%,#0000);
  background: 
    var(--_g) 0%   50%,
    var(--_g) 50%  50%,
    var(--_g) 100% 50%;
  background-size: calc(100%/3) 50%;
  animation: l3 1s infinite linear;
}
@keyframes l3 {
    20%{background-position:0%   0%, 50%  50%,100%  50%}
    40%{background-position:0% 100%, 50%   0%,100%  50%}
    60%{background-position:0%  50%, 50% 100%,100%   0%}
    80%{background-position:0%  50%, 50%  50%,100% 100%}
}