.loader {
  width: 48px;
  height: 48px;
  border: 5px dotted var(--color-primary);
  border-radius: 50%;
  display: none;
  margin: 0 auto;
  position: relative;
  box-sizing: border-box;
  animation: rotation 2s linear infinite;
}
.loader.active {
  display: block;
}

@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}