Staggered List Entrance
List rows slide up and fade in one after another. Each row carries its index in a --i custom property and the delay is calc(var(--i) * 90ms), so adding rows needs no new CSS.
Also known as: css staggered animation, list items animate one by one, stagger animation delay css.
HTML
<ul class="kfa-staggered-list-entrance"><li style="--i: 0; --w: 82%"><span class="kfa-staggered-list-entrance-dot"></span><span class="kfa-staggered-list-entrance-line"></span></li><li style="--i: 1; --w: 64%"><span class="kfa-staggered-list-entrance-dot"></span><span class="kfa-staggered-list-entrance-line"></span></li><li style="--i: 2; --w: 74%"><span class="kfa-staggered-list-entrance-dot"></span><span class="kfa-staggered-list-entrance-line"></span></li><li style="--i: 3; --w: 52%"><span class="kfa-staggered-list-entrance-dot"></span><span class="kfa-staggered-list-entrance-line"></span></li></ul>
CSS
.kfa-staggered-list-entrance {
--c: var(--kfa-color, #3b82f6);
font-size: var(--kfa-size, 16px);
display: grid;
gap: 0.45em;
width: 13em;
margin: 0;
padding: 0;
list-style: none;
}
.kfa-staggered-list-entrance > li {
display: flex;
align-items: center;
gap: 0.7em;
height: 1.8em;
padding: 0 0.6em;
border-radius: 0.55em;
background: color-mix(in srgb, var(--c) 14%, transparent);
animation: kfa-staggered-list-entrance-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) calc(var(--i) * 90ms) both;
}
.kfa-staggered-list-entrance-dot {
flex: none;
width: 0.9em;
height: 0.9em;
border-radius: 50%;
background: var(--c);
}
.kfa-staggered-list-entrance-line {
width: var(--w);
height: 0.45em;
border-radius: 1em;
background: color-mix(in srgb, var(--c) 45%, transparent);
}
@keyframes kfa-staggered-list-entrance-in {
from { opacity: 0; transform: translateY(1em) scale(0.97); }
}
@media (prefers-reduced-motion: reduce) {
.kfa-staggered-list-entrance, .kfa-staggered-list-entrance *, .kfa-staggered-list-entrance::before, .kfa-staggered-list-entrance::after, .kfa-staggered-list-entrance *::before, .kfa-staggered-list-entrance *::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.