Hinge
Comes loose on one side, swings from its top left corner like a sign hanging off one nail, sways twice, then drops and fades. A transform-origin of 0 0 does all the pivoting.
Also known as: hinge animation css, fall off hinge animation, animate.css hinge.
Hinge
HTML
<div class="kfa-hinge">Hinge</div>
CSS
.kfa-hinge {
--c: var(--kfa-color, #3b82f6);
font-size: var(--kfa-size, 16px);
display: grid;
place-items: center;
width: 5.5em;
height: 5.5em;
border-radius: 1em;
background: var(--c);
color: #fff;
font-family: system-ui, sans-serif;
font-weight: 700;
box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
transform-origin: 0 0;
animation: kfa-hinge-kf 2s both;
}
@keyframes kfa-hinge-kf {
0% { transform: rotate(0); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
20%, 60% { transform: rotate(80deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
40% { transform: rotate(60deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
/* the last sway, then gravity: ease-in on the drop */
80% { opacity: 1; transform: rotate(64deg); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
100% { opacity: 0; transform: translateY(2em) rotate(84deg); }
}
@media (prefers-reduced-motion: reduce) {
.kfa-hinge, .kfa-hinge *, .kfa-hinge::before, .kfa-hinge::after, .kfa-hinge *::before, .kfa-hinge *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--kfa-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--kfa-size. Every other dimension is inem, so the whole thing scales together. Currently previewing16px. - Speed: change the duration on the
transitionoranimationshorthand. 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.