.loading {
  width: 200px;
  height: 10px;
  outline: 1px solid var(--less-white);
  outline-offset: 4px;
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}

.loading::before {
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  width: 80%;
  height: 100%;
  background: var(--yellow);
  animation: loader 3s infinite ease-in-out;
}

@keyframes loader {
  0% {
    left: -120%;
  }
  50% {
    left: 120%;
  }
  100% {
    left: -120%;
  }
}