Block Swipe Reveal
A solid bar in the accent color sweeps across, and the text is there when it passes. Two animations: the bar scales in from the left then out to the right, and the text appears mid-sweep.
Also known as: colored block reveal, swipe reveal text, bar reveal.
Chapter one
HTML
<div class="txt-curtain-reveal">Chapter one</div>
CSS
.txt-curtain-reveal {
--c: var(--txt-color, #3b82f6);
font-size: var(--txt-size, 32px);
font-family: system-ui, sans-serif;
font-weight: 700;
line-height: 1.2;
position: relative;
display: inline-block;
padding: 0 0.15em;
color: var(--c);
opacity: 0;
animation: txt-curtain-reveal-show 0.01s linear 0.45s forwards;}
.txt-curtain-reveal::after {
content: "";
position: absolute;
inset: 0;
background: var(--c);
transform: scaleX(0);
transform-origin: left;
animation: txt-curtain-reveal-sweep 0.9s cubic-bezier(0.7, 0, 0.3, 1) forwards;
}
@keyframes txt-curtain-reveal-show {
to { opacity: 1; }
}
@keyframes txt-curtain-reveal-sweep {
0% { transform: scaleX(0); transform-origin: left; }
50% { transform: scaleX(1); transform-origin: left; }
51% { transform: scaleX(1); transform-origin: right; }
100% { transform: scaleX(0); transform-origin: right; }
}
@media (prefers-reduced-motion: reduce) {
.txt-curtain-reveal, .txt-curtain-reveal *, .txt-curtain-reveal::before, .txt-curtain-reveal::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--txt-coloron the element or a parent. Currently previewing#3b82f6. - Font size: set
--txt-size. Every other dimension is inem, so the whole thing scales together. Currently previewing40px. - 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.