Clock Loader
A clock face whose hands sweep round at different speeds. A literal metaphor that suits scheduling, timers, and 'this may take a minute' waits.
HTML
<div class="ldr-clock" role="status" aria-label="Loading"></div>
CSS
.ldr-clock {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
position: relative;
width: var(--s);
height: var(--s);
border: calc(var(--s) / 16) solid var(--c);
border-radius: 50%;
}
.ldr-clock::before,
.ldr-clock::after {
content: "";
position: absolute;
left: 50%;
bottom: 50%;
width: calc(var(--s) / 16);
margin-left: calc(var(--s) / -32);
border-radius: 999px;
background: var(--c);
transform-origin: 50% 100%;
}
.ldr-clock::before {
height: 28%;
animation: ldr-clock-sweep 6s linear infinite;
}
.ldr-clock::after {
height: 38%;
animation: ldr-clock-sweep 1s linear infinite;
}
@keyframes ldr-clock-sweep {
to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
.ldr-clock, .ldr-clock *, .ldr-clock::before, .ldr-clock::after {
animation-duration: 3s;
}
}Customizing this loader
- Color: set
--ldr-coloron the element or a parent. Currently previewing#3b82f6. - Size: set
--ldr-size. Every dimension in the snippet is derived from it. Currently previewing64px. - Speed: change the duration on the
animationshorthand. Delays on the children are relative, so they keep their rhythm. - Accessibility: the root carries
role="status"and anaria-labelso screen readers announce the wait. The reduced-motion rule at the end slows the animation for users who asked for less motion.