AI CSS Animations

Bouncing Letters Text Animation

Letters fall in from above one at a time, squash on landing and bounce twice before they settle. Each keyframe carries its own easing, so the fall speeds up like real gravity.

Also known as: bounce in text css, falling letters animation, drop in letters.

Touchdown!

HTML

<div class="txt-bouncing-letters-drop-in" aria-label="Touchdown!"><span style="--i: 0">T</span><span style="--i: 1">o</span><span style="--i: 2">u</span><span style="--i: 3">c</span><span style="--i: 4">h</span><span style="--i: 5">d</span><span style="--i: 6">o</span><span style="--i: 7">w</span><span style="--i: 8">n</span><span style="--i: 9">!</span></div>

CSS

.txt-bouncing-letters-drop-in {
  --c: var(--txt-color, #3b82f6);
  font-size: var(--txt-size, 32px);
  font-family: system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c);}
.txt-bouncing-letters-drop-in span {
  display: inline-block;
  transform-origin: 50% 100%;
  animation: txt-bouncing-letters-drop-in-fall 1s calc(var(--i) * 70ms) both;
}
/* ease-in on the way down, ease-out on the way up */
@keyframes txt-bouncing-letters-drop-in-fall {
  0%   { opacity: 0; transform: translateY(-1.6em) scale(0.9, 1.15); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
  12%  { opacity: 1; }
  32%  { transform: translateY(0) scale(0.9, 1.15); animation-timing-function: ease-out; }
  40%  { transform: translateY(0) scale(1.2, 0.78); animation-timing-function: cubic-bezier(0, 0.55, 0.45, 1); }
  58%  { transform: translateY(-0.4em) scale(0.96, 1.05); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
  72%  { transform: translateY(0) scale(1.08, 0.9); animation-timing-function: cubic-bezier(0, 0.55, 0.45, 1); }
  84%  { transform: translateY(-0.1em) scale(1, 1); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
  93%  { transform: translateY(0) scale(1.02, 0.98); }
  100% { opacity: 1; transform: translateY(0) scale(1, 1); }
}

@media (prefers-reduced-motion: reduce) {
  .txt-bouncing-letters-drop-in, .txt-bouncing-letters-drop-in *, .txt-bouncing-letters-drop-in::before, .txt-bouncing-letters-drop-in::after, .txt-bouncing-letters-drop-in *::before, .txt-bouncing-letters-drop-in *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

Customizing this snippet

  • Color: set --txt-color on the element or a parent. Currently previewing #3b82f6.
  • Font size: set --txt-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 40px.
  • 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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