Streaks in from the right leaning back on a skewX, tips forward as it brakes, then settles upright. Skew suggests speed without the cost of a blur filter.
Also known as: light speed animation css, light speed in, skew slide in css.
<div class="kfa-light-speed-in-right">Speed</div>
.kfa-light-speed-in-right {
--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-light-speed-in-right-kf 0.7s both;
}
@keyframes kfa-light-speed-in-right-kf {
0% {
opacity: 0;
transform: translateX(8em) skewX(-30deg);
animation-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
}
55% {
opacity: 1;
transform: translateX(0) skewX(18deg);
animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
}
78% {
transform: translateX(0) skewX(-6deg);
animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
}
100% { opacity: 1; transform: translateX(0) skewX(0); }
}
@media (prefers-reduced-motion: reduce) {
.kfa-light-speed-in-right, .kfa-light-speed-in-right *, .kfa-light-speed-in-right::before, .kfa-light-speed-in-right::after, .kfa-light-speed-in-right *::before, .kfa-light-speed-in-right *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}--kfa-color on the element or a parent.
Currently previewing #3b82f6.--kfa-size. Every other dimension is in
em, so the whole thing scales together. Currently previewing 16px.transition or animation
shorthand. Staggered delays are relative, so they keep their rhythm.