<div class="clock-loader"></div>
body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  background: black;
}

.clock-loader {
  --clock-color: var(--primary-color);
  --clock-width: 4rem;
  --clock-radius: calc(var(--clock-width) / 2);
  --clock-minute-length: calc(var(--clock-width) * 0.4);
  --clock-hour-length: calc(var(--clock-width) * 0.2);
  --clock-thickness: 0.2rem;

  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: var(--clock-width);
  height: var(--clock-width);
  border: 3px solid var(--clock-color);
  border-radius: 50%;

  &::before,
  &::after {
    position: absolute;
    content: "";
    top: calc(var(--clock-radius) * 0.25);
    width: var(--clock-thickness);
    background: var(--clock-color);
    border-radius: 10px;
    transform-origin: center calc(100% - calc(var(--clock-thickness) / 2));
    animation: spin infinite linear;
  }

  &::before {
    height: var(--clock-minute-length);
    animation-duration: 2s;
  }

  &::after {
    top: calc(var(--clock-radius) * 0.25 + var(--clock-hour-length));
    height: var(--clock-hour-length);
    animation-duration: 15s;
  }
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}
View Compiled

External CSS

  1. https://cdn.jsdelivr.net/gh/alphardex/aqua.css@master/dist/aqua.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.