Bouncing Button
A button that hops on its own every couple of seconds: it squashes to wind up, jumps, stretches, lands with a squash and settles, while its shadow shrinks and grows on the ground below.
Also known as: css button bounce animation, jumping button css, bounce attention button.
HTML
<button class="btn-bounce" type="button"><span class="btn-bounce-face">Claim reward</span></button>
CSS
.btn-bounce {
--c: var(--btn-color, #3b82f6);
display: inline-flex;
align-items: center;
justify-content: center;
gap: 0.5em;
padding: 0.75em 1.6em;
border: 0;
border-radius: 0.6em;
font: 600 var(--btn-size, 18px)/1.1 system-ui, sans-serif;
cursor: pointer;
-webkit-tap-highlight-color: transparent;
position: relative;
padding: 0 0 0.8em;
background: transparent;
color: #fff;}
.btn-bounce::after {
content: "";
position: absolute;
right: 12%;
bottom: 0;
left: 12%;
height: 0.55em;
border-radius: 50%;
background: radial-gradient(closest-side, color-mix(in srgb, var(--c) 55%, transparent), transparent);
animation: btn-bounce-shadow 2.2s infinite;
}
.btn-bounce-face {
display: block;
padding: 0.8em 1.8em;
border-radius: 0.75em;
background: var(--c);
transform-origin: 50% 100%;
animation: btn-bounce-hop 2.2s infinite;
}
.btn-bounce:active .btn-bounce-face { animation-play-state: paused; }
@keyframes btn-bounce-hop {
0% { transform: translateY(0) scale(1, 1); animation-timing-function: ease-out; }
8% { transform: translateY(0) scale(1.1, 0.88); animation-timing-function: cubic-bezier(0.2, 0.8, 0.4, 1); }
30% { transform: translateY(-1.5em) scale(0.95, 1.06); animation-timing-function: cubic-bezier(0.5, 0, 0.8, 0.4); }
46% { transform: translateY(0) scale(1.12, 0.86); animation-timing-function: ease-out; }
56% { transform: translateY(-0.35em) scale(0.98, 1.03); animation-timing-function: ease-in; }
64% { transform: translateY(0) scale(1.04, 0.96); animation-timing-function: ease-out; }
72%, 100% { transform: translateY(0) scale(1, 1); }
}
@keyframes btn-bounce-shadow {
0%, 8%, 46%, 64%, 72%, 100% { transform: scale(1); opacity: 1; }
30% { transform: scale(0.6); opacity: 0.45; }
56% { transform: scale(0.9); opacity: 0.85; }
}
@media (prefers-reduced-motion: reduce) {
.btn-bounce, .btn-bounce *, .btn-bounce::before, .btn-bounce::after, .btn-bounce *::before, .btn-bounce *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Tailwind CSS version
The same effect using Tailwind utility classes. No custom CSS or config needed.
<button class="animate-bounce rounded-xl bg-blue-500 px-7 py-3 font-semibold text-white shadow-lg shadow-blue-500/30"> Claim reward </button>
Customizing this snippet
- Color: set
--btn-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--btn-size. Every other dimension is inem, so the whole thing scales together. Currently previewing18px. - 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.