Bounce In Up
Launches up from below stretched tall, overshoots, drops back into a small squash and settles. Reads like a spring jumping into place rather than a ball dropping.
Also known as: bounce in from bottom css, spring up animation css, jump in animation.
Jump
HTML
<div class="kfa-bounce-in-up">Jump</div>
CSS
.kfa-bounce-in-up {
--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);
animation: kfa-bounce-in-up-kf 0.9s both;
}
@keyframes kfa-bounce-in-up-kf {
0% {
opacity: 0;
transform: translateY(2.2em) scale(0.9, 1.2);
animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
}
45% {
opacity: 1;
transform: translateY(-0.75em) scale(0.97, 1.04);
animation-timing-function: cubic-bezier(0.32, 0, 0.67, 0);
}
65% {
transform: translateY(0.12em) scale(1.06, 0.94);
animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
}
80% {
transform: translateY(-0.18em) scale(0.99, 1.01);
animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
}
100% { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
.kfa-bounce-in-up, .kfa-bounce-in-up *, .kfa-bounce-in-up::before, .kfa-bounce-in-up::after, .kfa-bounce-in-up *::before, .kfa-bounce-in-up *::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.