Swing
Hangs from its top edge and swings like a sign on a nail, each arc smaller than the last until it hangs still. The transform-origin sits at the top center, so the bottom does the moving.
Also known as: swing animation css, swinging sign, hanging swing.
Swing
HTML
<div class="kfa-swing">Swing</div>
CSS
.kfa-swing {
--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: 50% 0;
animation: kfa-swing-sway 1.2s ease-in-out both;
}
@keyframes kfa-swing-sway {
0%, 100% { transform: rotate(0); }
16% { transform: rotate(15deg); }
34% { transform: rotate(-10deg); }
52% { transform: rotate(6deg); }
68% { transform: rotate(-3.5deg); }
82% { transform: rotate(1.5deg); }
}
@media (prefers-reduced-motion: reduce) {
.kfa-swing, .kfa-swing *, .kfa-swing::before, .kfa-swing::after, .kfa-swing *::before, .kfa-swing *::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.