Wiggle Icon
An icon button that wiggles like a ringing bell when hovered. The animation only runs during hover, so it never distracts while idle.
Also known as: shake icon hover, bell ring animation.
HTML
<button class="hfx-icon-wiggle" aria-label="Notifications"> <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M6 8a6 6 0 0 1 12 0c0 7 3 9 3 9H3s3-2 3-9"/><path d="M10.3 21a1.94 1.94 0 0 0 3.4 0"/></svg> </button>
CSS
.hfx-icon-wiggle {
--c: var(--hfx-color, #3b82f6);
font-size: var(--hfx-size, 16px);
display: grid;
place-items: center;
width: 2.75em;
height: 2.75em;
border: 0;
border-radius: 50%;
background: color-mix(in srgb, var(--c) 12%, transparent);
color: var(--c);
cursor: pointer;
transition: background-color 0.2s ease;
}
.hfx-icon-wiggle svg {
width: 1.4em;
height: 1.4em;
transform-origin: 50% 0;
}
.hfx-icon-wiggle:hover { background: color-mix(in srgb, var(--c) 20%, transparent); }
.hfx-icon-wiggle:hover svg { animation: hfx-icon-wiggle-ring 0.7s ease-in-out; }
@keyframes hfx-icon-wiggle-ring {
0%, 100% { transform: rotate(0); }
20% { transform: rotate(14deg); }
40% { transform: rotate(-12deg); }
60% { transform: rotate(8deg); }
80% { transform: rotate(-5deg); }
}
@media (prefers-reduced-motion: reduce) {
.hfx-icon-wiggle, .hfx-icon-wiggle *, .hfx-icon-wiggle::before, .hfx-icon-wiggle::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--hfx-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--hfx-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.