AI CSS Animations

Hinge Drop Text

A CLOSED sign loses its right nail, drops, and swings on the left one before settling at a crooked tilt. A damped rotation around the remaining nail that plays once and stays put.

Also known as: hinge animation css, falling sign text, broken sign effect.

CLOSED

HTML

<div class="txt-hinge-drop-text"><span class="txt-hinge-drop-text-sign">CLOSED</span></div>

CSS

.txt-hinge-drop-text {
  --c: var(--txt-color, #3b82f6);
  font-size: calc(var(--txt-size, 32px) * 1.2);
  font-family: system-ui, sans-serif;
  font-weight: 800;
  line-height: 1.2;
  display: inline-block;
  padding-bottom: 1.4em; /* room for the drop */}
.txt-hinge-drop-text-sign {
  position: relative;
  display: inline-block;
  padding: 0.3em 0.7em;
  border: 0.07em solid var(--c);
  border-radius: 0.12em;
  color: var(--c);
  letter-spacing: 0.12em;
  background: color-mix(in srgb, var(--c) 10%, transparent);
  transform-origin: 0.3em 0.3em; /* the nail that holds */
  animation: txt-hinge-drop-text-swing 2.4s both;
}
/* the two nails: the left one holds, the right one pops out */
.txt-hinge-drop-text-sign::before,
.txt-hinge-drop-text-sign::after {
  content: "";
  position: absolute;
  top: 0.22em;
  width: 0.16em;
  height: 0.16em;
  border-radius: 50%;
  background: var(--c);
}
.txt-hinge-drop-text-sign::before {
  left: 0.22em;
}
.txt-hinge-drop-text-sign::after {
  right: 0.22em;
  animation: txt-hinge-drop-text-nail 2.4s both;
}
@keyframes txt-hinge-drop-text-swing {
  0%, 20% { transform: rotate(0deg); }
  23%     { transform: rotate(-1.5deg); animation-timing-function: cubic-bezier(0.5, 0, 0.9, 0.5); }
  38%     { transform: rotate(21deg); animation-timing-function: cubic-bezier(0.3, 0, 0.5, 1); }
  52%     { transform: rotate(7deg); animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1); }
  64%     { transform: rotate(16deg); animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1); }
  75%     { transform: rotate(10.5deg); animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1); }
  85%     { transform: rotate(13.5deg); animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1); }
  100%    { transform: rotate(12deg); }
}
@keyframes txt-hinge-drop-text-nail {
  0%, 22% { opacity: 1; transform: none; }
  40%     { opacity: 0; transform: translate(0.3em, 1.2em) rotate(120deg); }
  100%    { opacity: 0; transform: translate(0.3em, 1.2em) rotate(120deg); }
}

@media (prefers-reduced-motion: reduce) {
  .txt-hinge-drop-text, .txt-hinge-drop-text *, .txt-hinge-drop-text::before, .txt-hinge-drop-text::after, .txt-hinge-drop-text *::before, .txt-hinge-drop-text *::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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