Material 3 Spinner with Track
The Material 3 circular indicator: an arc grows and shrinks while a faint track fills the rest of the ring, with a small gap at each end. Two SVG circles, both with pathLength set to 100.
Also known as: m3 circular progress indicator, material you spinner, spinner with track gap.
HTML
<svg class="ldr-material-track-spinner" viewBox="0 0 48 48" role="status" aria-label="Loading"> <circle class="ldr-material-track-spinner-track" cx="24" cy="24" r="20" pathLength="100"></circle> <circle class="ldr-material-track-spinner-arc" cx="24" cy="24" r="20" pathLength="100"></circle> </svg>
CSS
.ldr-material-track-spinner {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
width: var(--s);
height: var(--s);
animation: ldr-material-track-spinner-rotate 2.4s linear infinite;
}
.ldr-material-track-spinner circle {
fill: none;
stroke-width: 4;
stroke-linecap: round;
}
/* The track always covers what the arc leaves free, minus a gap of 7 at each end. */
.ldr-material-track-spinner-track {
stroke: color-mix(in srgb, var(--ldr-color, #3b82f6) 22%, transparent);
animation: ldr-material-track-spinner-track 1.6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
.ldr-material-track-spinner-arc {
stroke: var(--c);
animation: ldr-material-track-spinner-arc 1.6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
@keyframes ldr-material-track-spinner-rotate {
to { transform: rotate(360deg); }
}
@keyframes ldr-material-track-spinner-arc {
0% { stroke-dasharray: 5 95; stroke-dashoffset: 0; }
50% { stroke-dasharray: 70 30; stroke-dashoffset: -5; }
100% { stroke-dasharray: 5 95; stroke-dashoffset: -100; }
}
@keyframes ldr-material-track-spinner-track {
0% { stroke-dasharray: 81 19; stroke-dashoffset: -12; }
50% { stroke-dasharray: 16 84; stroke-dashoffset: -82; }
100% { stroke-dasharray: 81 19; stroke-dashoffset: -112; }
}
@media (prefers-reduced-motion: reduce) {
.ldr-material-track-spinner, .ldr-material-track-spinner *, .ldr-material-track-spinner::before, .ldr-material-track-spinner::after, .ldr-material-track-spinner *::before, .ldr-material-track-spinner *::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.