Isometric Cube Loader: Hairline Animation

Isometric Cube Loader

Eight hairline cubes burst apart along their diagonals and spring back into one isometric block, the top corner cube capped in the accent. A calm SVG and CSS loading spinner.

Also known as: isometric loader, 3d cube loader css, hairline loader.

Color Base size 16px Dark background

HTML

<div class="hln-iso-cube-loader" role="status" aria-label="Loading">
  <svg viewBox="-110 -60 220 120" aria-hidden="true"><g transform="translate(0 2) scale(2.1)"><g class="hln-iso-cube-loader-cube" style="--x: 0; --y: 0"><g><polygon points="-8,-4 0,0 0,-8 -8,-12"/><polygon points="8,-4 0,0 0,-8 8,-12"/><polygon points="0,-16 8,-12 0,-8 -8,-12"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: -6.4; --y: 3.2"><g><polygon points="-16,0 -8,4 -8,-4 -16,-8"/><polygon points="0,0 -8,4 -8,-4 0,-8"/><polygon points="-8,-12 0,-8 -8,-4 -16,-8"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: 6.4; --y: 3.2"><g><polygon points="0,0 8,4 8,-4 0,-8"/><polygon points="16,0 8,4 8,-4 16,-8"/><polygon points="8,-12 16,-8 8,-4 0,-8"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: 0; --y: -6.4"><g><polygon points="-8,-12 0,-8 0,-16 -8,-20"/><polygon points="8,-12 0,-8 0,-16 8,-20"/><polygon points="0,-24 8,-20 0,-16 -8,-20"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: 0; --y: 6.4"><g><polygon points="-8,4 0,8 0,0 -8,-4"/><polygon points="8,4 0,8 0,0 8,-4"/><polygon points="0,-8 8,-4 0,0 -8,-4"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: -6.4; --y: -3.2"><g><polygon points="-16,-8 -8,-4 -8,-12 -16,-16"/><polygon points="0,-8 -8,-4 -8,-12 0,-16"/><polygon points="-8,-20 0,-16 -8,-12 -16,-16"/></g></g><g class="hln-iso-cube-loader-cube" style="--x: 6.4; --y: -3.2"><g><polygon points="0,-8 8,-4 8,-12 0,-16"/><polygon points="16,-8 8,-4 8,-12 16,-16"/><polygon points="8,-20 16,-16 8,-12 0,-16"/></g></g><g class="hln-iso-cube-loader-cube hln-iso-cube-loader-hot" style="--x: 0; --y: 0"><g><polygon points="-8,-4 0,0 0,-8 -8,-12"/><polygon points="8,-4 0,0 0,-8 8,-12"/><polygon points="0,-16 8,-12 0,-8 -8,-12"/></g></g></g></svg>
</div>

CSS

.hln-iso-cube-loader {
  --c: var(--hln-color, #ff4f2e);
  font-size: var(--hln-size, 16px);
  position: relative;
  display: grid;
  place-items: center;
  width: 22em;
  height: 12em;
  border-radius: 0.75em;
  background: #f6f5f1;
  overflow: hidden;
  --u: 1px;
}
.hln-iso-cube-loader svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: #ffffff;
  stroke: #1c1d21;
  stroke-width: 1.25;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.hln-iso-cube-loader svg * {
  vector-effect: non-scaling-stroke;
}
.hln-iso-cube-loader .hln-iso-cube-loader-cube {
  animation: hln-iso-cube-loader-burst 3.2s infinite;
}
.hln-iso-cube-loader .hln-iso-cube-loader-hot polygon:last-child {
  fill: var(--c);
}
@keyframes hln-iso-cube-loader-burst {
  0% { translate: 0 0; }
  10% { translate: calc(var(--x) * 0 * var(--u)) calc(var(--y) * 0 * var(--u)); animation-timing-function: cubic-bezier(0.3, 0, 0.2, 1); }
  23.2% { translate: calc(var(--x) * 1.08 * var(--u)) calc(var(--y) * 1.08 * var(--u)); animation-timing-function: ease-in-out; }
  29.2% { translate: calc(var(--x) * 0.98 * var(--u)) calc(var(--y) * 0.98 * var(--u)); animation-timing-function: ease-in-out; }
  34% { translate: calc(var(--x) * 1 * var(--u)) calc(var(--y) * 1 * var(--u)); }
  58% { translate: calc(var(--x) * 1 * var(--u)) calc(var(--y) * 1 * var(--u)); animation-timing-function: cubic-bezier(0.3, 0, 0.2, 1); }
  72.3% { translate: calc(var(--x) * -0.08000000000000007 * var(--u)) calc(var(--y) * -0.08000000000000007 * var(--u)); animation-timing-function: ease-in-out; }
  78.8% { translate: calc(var(--x) * 0.020000000000000018 * var(--u)) calc(var(--y) * 0.020000000000000018 * var(--u)); animation-timing-function: ease-in-out; }
  84% { translate: calc(var(--x) * 0 * var(--u)) calc(var(--y) * 0 * var(--u)); }
  100% { translate: 0 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hln-iso-cube-loader * {
    animation: none !important;
  }
  .hln-iso-cube-loader .hln-iso-cube-loader-cube { translate: calc(var(--x) * 0.5 * var(--u)) calc(var(--y) * 0.5 * var(--u)); }
}

@media (prefers-reduced-motion: reduce) {
  .hln-iso-cube-loader, .hln-iso-cube-loader *, .hln-iso-cube-loader::before, .hln-iso-cube-loader::after, .hln-iso-cube-loader *::before, .hln-iso-cube-loader *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

Customizing this snippet

Color: set --hln-color on the element or a parent. Currently previewing #3b82f6.
Base size: set --hln-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 16px.
Speed: change the duration on the transition or animation shorthand. Staggered delays are relative, so they keep their rhythm.
Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.

Isometric Cube Loader

HTML

CSS

Customizing this snippet

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