AI CSS Animations

Rotating Status Text Loader

A status pill with a dotted spinner and a word that rolls up through Fetching, Parsing and Rendering. Pure CSS: a word column slides inside a one-line window.

Also known as: changing loading messages, loading text carousel, status word slider.

HTML

<div class="ldr-rotating-status-text" role="status" aria-label="Working">
  <span class="ldr-rotating-status-text-spinner" aria-hidden="true"></span>
  <span class="ldr-rotating-status-text-window" aria-hidden="true">
    <span class="ldr-rotating-status-text-words"><span>Fetching</span><span>Parsing</span><span>Rendering</span><span>Fetching</span></span>
  </span>
</div>

CSS

.ldr-rotating-status-text {
  --s: var(--ldr-size, 48px);
  --c: var(--ldr-color, #3b82f6);
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.5em 1em 0.5em 0.75em;
  border-radius: 2em;
  background: color-mix(in srgb, var(--ldr-color, #3b82f6) 10%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ldr-color, #3b82f6) 22%, transparent);
  font: 500 calc(var(--s) / 3) / 1.3 system-ui, sans-serif;
  color: color-mix(in srgb, currentColor 85%, transparent);
}
.ldr-rotating-status-text-spinner {
  width: 1em;
  height: 1em;
  box-sizing: border-box;
  border: 0.17em dotted var(--c);
  border-radius: 50%;
  animation: ldr-rotating-status-text-spin 1.6s linear infinite;
}
.ldr-rotating-status-text-window {
  height: 1.3em;
  overflow: hidden;
  -webkit-mask: linear-gradient(transparent, #000 14%, #000 86%, transparent);
  mask: linear-gradient(transparent, #000 14%, #000 86%, transparent);
}
.ldr-rotating-status-text-words {
  display: grid;
  animation: ldr-rotating-status-text-roll 4.8s cubic-bezier(0.6, 0, 0.3, 1.25) infinite;
}
@keyframes ldr-rotating-status-text-roll {
  0%, 26%       { transform: translateY(0); }
  33.33%, 59%   { transform: translateY(-25%); }
  66.67%, 92%   { transform: translateY(-50%); }
  100%          { transform: translateY(-75%); }
}
@keyframes ldr-rotating-status-text-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .ldr-rotating-status-text, .ldr-rotating-status-text *, .ldr-rotating-status-text::before, .ldr-rotating-status-text::after, .ldr-rotating-status-text *::before, .ldr-rotating-status-text *::after {
    animation-duration: 3s;
  }
}

Customizing this loader

  • Color: set --ldr-color on the element or a parent. Currently previewing #3b82f6.
  • Size: set --ldr-size. Every dimension in the snippet is derived from it. Currently previewing 64px.
  • Speed: change the duration on the animation shorthand. Delays on the children are relative, so they keep their rhythm.
  • Accessibility: the root carries role="status" and an aria-label so screen readers announce the wait. The reduced-motion rule at the end slows the animation for users who asked for less motion.

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