Segmented Loading Wheel
Twelve segments arranged in a ring, advancing one tick at a time with steps() instead of gliding. A mechanical, clockwork feel that suits dashboards and dev tools.
Also known as: stepped spinner, ticking wheel.
HTML
<div class="ldr-segmented-wheel" role="status" aria-label="Loading"></div>
CSS
.ldr-segmented-wheel {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
--t: calc(var(--s) / 5);
width: var(--s);
height: var(--s);
border-radius: 50%;
background: conic-gradient(from 0deg, color-mix(in srgb, var(--ldr-color, #3b82f6) 15%, transparent) 0 60%, var(--c) 100%);
-webkit-mask:
repeating-conic-gradient(#000 0 20deg, transparent 20deg 30deg),
radial-gradient(farthest-side, transparent calc(100% - var(--t)), #000 calc(100% - var(--t) + 1px));
-webkit-mask-composite: source-in;
mask:
repeating-conic-gradient(#000 0 20deg, transparent 20deg 30deg),
radial-gradient(farthest-side, transparent calc(100% - var(--t)), #000 calc(100% - var(--t) + 1px));
mask-composite: intersect;
animation: ldr-segmented-wheel-tick 1.2s steps(12) infinite;
}
@keyframes ldr-segmented-wheel-tick {
to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
.ldr-segmented-wheel, .ldr-segmented-wheel *, .ldr-segmented-wheel::before, .ldr-segmented-wheel::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.