.loading_screen{
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading_spinner{
  width: 150px;
  padding: 20px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #25b09b;
  --_m: 
    conic-gradient(#0000 10%,#000),
    linear-gradient(#000 0 0) content-box;
  -webkit-mask: var(--_m);
          mask: var(--_m);
  -webkit-mask-composite: source-out;
          mask-composite: subtract;
  animation: l3 1s infinite linear;
}
@keyframes l3 {to{transform: rotate(1turn)}}