Wireframe Cube Loader
A wireframe cube tumbles on two axes while a smaller tinted cube inside turns the opposite way, like a tesseract sketch. Edges are borders on transparent faces in one preserve-3d scene.
Also known as: tesseract loader, cube in cube loader, 3d wireframe cube.
HTML
<div class="ldr-wireframe-cube" role="status" aria-label="Loading"> <div class="ldr-wireframe-cube-outer"><span></span><span></span><span></span><span></span><span></span><span></span></div> <div class="ldr-wireframe-cube-inner"><span></span><span></span><span></span><span></span><span></span><span></span></div> </div>
CSS
.ldr-wireframe-cube {
--s: var(--ldr-size, 48px);
--c: var(--ldr-color, #3b82f6);
position: relative;
width: var(--s);
height: var(--s);
perspective: calc(var(--s) * 4);
transform-style: preserve-3d;
}
.ldr-wireframe-cube-outer,
.ldr-wireframe-cube-inner {
--e: calc(var(--s) * 0.56);
position: absolute;
left: 50%;
top: 50%;
width: var(--e);
height: var(--e);
margin: calc(var(--e) / -2) 0 0 calc(var(--e) / -2);
transform-style: preserve-3d;
animation: ldr-wireframe-cube-tumble 4.8s linear infinite;
}
.ldr-wireframe-cube-inner {
--e: calc(var(--s) * 0.26);
animation-direction: reverse;
}
.ldr-wireframe-cube span {
position: absolute;
inset: 0;
border: calc(var(--s) / 28) solid var(--c);
}
.ldr-wireframe-cube-inner span {
border-width: calc(var(--s) / 40);
border-color: color-mix(in srgb, var(--ldr-color, #3b82f6) 80%, transparent);
background: color-mix(in srgb, var(--ldr-color, #3b82f6) 26%, transparent);
}
.ldr-wireframe-cube span:nth-child(1) { transform: translateZ(calc(var(--e) / 2)); }
.ldr-wireframe-cube span:nth-child(2) { transform: rotateY(90deg) translateZ(calc(var(--e) / 2)); }
.ldr-wireframe-cube span:nth-child(3) { transform: rotateY(180deg) translateZ(calc(var(--e) / 2)); }
.ldr-wireframe-cube span:nth-child(4) { transform: rotateY(-90deg) translateZ(calc(var(--e) / 2)); }
.ldr-wireframe-cube span:nth-child(5) { transform: rotateX(90deg) translateZ(calc(var(--e) / 2)); }
.ldr-wireframe-cube span:nth-child(6) { transform: rotateX(-90deg) translateZ(calc(var(--e) / 2)); }
@keyframes ldr-wireframe-cube-tumble {
from { transform: rotateX(0deg) rotateY(0deg); }
to { transform: rotateX(360deg) rotateY(360deg); }
}
@media (prefers-reduced-motion: reduce) {
.ldr-wireframe-cube, .ldr-wireframe-cube *, .ldr-wireframe-cube::before, .ldr-wireframe-cube::after, .ldr-wireframe-cube *::before, .ldr-wireframe-cube *::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.