AI CSS Animations

Stacked Cards Fan Out Hover

A small stack of photo prints that fans out on hover, the back two swinging to either side on a springy curve. One custom property per card drives both its resting tilt and its fan angle.

Also known as: card stack hover, fan out cards css, photo stack hover.

Porto, June

HTML

<div class="hfx-card-stack-fan">
  <div class="hfx-card-stack-fan-card" style="--i: -1"><div class="hfx-card-stack-fan-photo"></div></div>
  <div class="hfx-card-stack-fan-card" style="--i: 1"><div class="hfx-card-stack-fan-photo"></div></div>
  <figure class="hfx-card-stack-fan-card hfx-card-stack-fan-top" style="--i: 0">
    <div class="hfx-card-stack-fan-photo"></div>
    <figcaption>Porto, June</figcaption>
  </figure>
</div>

CSS

.hfx-card-stack-fan {
  --c: var(--hfx-color, #3b82f6);
  font-size: var(--hfx-size, 16px);
  position: relative;
  width: 7.2em;
  height: 8.8em;
  font-family: system-ui, sans-serif;
}
.hfx-card-stack-fan-card {
  position: absolute;
  inset: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0.45em 0.45em 0;
  border-radius: 0.35em;
  background: #fff;
  box-shadow: 0 0 0 1px color-mix(in srgb, #000 8%, transparent), 0 0.4em 0.9em -0.4em color-mix(in srgb, #000 35%, transparent);
  transform-origin: 50% 115%;
  transform: rotate(calc(var(--i) * 5deg));
  transition: transform 0.5s cubic-bezier(0.34, 1.45, 0.64, 1);
}
.hfx-card-stack-fan:hover .hfx-card-stack-fan-card {
  transform: translateX(calc(var(--i) * 4em)) rotate(calc(var(--i) * 13deg));
}
.hfx-card-stack-fan:hover .hfx-card-stack-fan-top {
  transform: translateY(-0.35em) scale(1.04);
}
.hfx-card-stack-fan-photo {
  height: 6.3em;
  border-radius: 0.15em;
  background: radial-gradient(120% 70% at 18% 100%, color-mix(in srgb, var(--c) 75%, #000) 0 50%, transparent 51%),
    radial-gradient(140% 80% at 88% 100%, color-mix(in srgb, var(--c) 50%, #fff) 0 50%, transparent 51%),
    radial-gradient(circle at 70% 38%, #fff7d6 0 12%, transparent 13%),
    linear-gradient(to bottom, color-mix(in srgb, var(--c) 30%, #fff), color-mix(in srgb, var(--c) 55%, #fff));
}
.hfx-card-stack-fan-card:not(.hfx-card-stack-fan-top) .hfx-card-stack-fan-photo {
  filter: hue-rotate(calc(var(--i) * 55deg)) saturate(0.85);
}
.hfx-card-stack-fan figcaption {
  padding: 0.55em 0 0;
  font-family: Georgia, serif;
  font-size: 0.7em;
  font-style: italic;
  text-align: center;
  color: #4b5563;
}

@media (prefers-reduced-motion: reduce) {
  .hfx-card-stack-fan, .hfx-card-stack-fan *, .hfx-card-stack-fan::before, .hfx-card-stack-fan::after, .hfx-card-stack-fan *::before, .hfx-card-stack-fan *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

Customizing this snippet

  • Color: set --hfx-color on the element or a parent. Currently previewing #3b82f6.
  • Base size: set --hfx-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.

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