Dot to Dash Ring Spinner
Eight round dots stretch into long dashes until the ring almost closes, then shrink back to dots, all while turning. A zero length dash with round caps is what draws each dot.
Also known as: dotted circle loader, dashed circle animation, morphing dashed ring.
HTML
<svg class="ldr-dash-morph-ring" viewBox="0 0 48 48" role="status" aria-label="Loading"> <circle cx="24" cy="24" r="19" pathLength="100"></circle> </svg>
CSS
.ldr-dash-morph-ring {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
width: var(--s);
height: var(--s);
animation: ldr-dash-morph-ring-turn 3.2s linear infinite;
}
/* Eight segments of 12.5 each; the offset keeps every dash centred on its dot. */
.ldr-dash-morph-ring circle {
fill: none;
stroke: var(--c);
stroke-width: 4.5;
stroke-linecap: round;
animation: ldr-dash-morph-ring-morph 1.6s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes ldr-dash-morph-ring-turn {
to { transform: rotate(360deg); }
}
@keyframes ldr-dash-morph-ring-morph {
0%, 100% { stroke-dasharray: 0 12.5; stroke-dashoffset: 0; }
50% { stroke-dasharray: 8 4.5; stroke-dashoffset: 4; }
}
@media (prefers-reduced-motion: reduce) {
.ldr-dash-morph-ring, .ldr-dash-morph-ring *, .ldr-dash-morph-ring::before, .ldr-dash-morph-ring::after, .ldr-dash-morph-ring *::before, .ldr-dash-morph-ring *::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.