Shimmer Text
A bright band sweeps across otherwise muted text, like light on brushed metal. The same idea AI chat apps use for their 'Thinking' status line.
Also known as: shine text, metallic text sweep, text highlight sweep.
Shimmering
HTML
<div class="txt-shimmer">Shimmering</div>
CSS
.txt-shimmer {
--c: var(--txt-color, #3b82f6);
font-size: var(--txt-size, 32px);
font-family: system-ui, sans-serif;
font-weight: 700;
line-height: 1.2;
background: linear-gradient(90deg, color-mix(in srgb, var(--c) 45%, transparent) 0%, var(--c) 50%, color-mix(in srgb, var(--c) 45%, transparent) 100%);
background-size: 200% 100%;
-webkit-background-clip: text;
background-clip: text;
color: transparent;
-webkit-text-fill-color: transparent;
animation: txt-shimmer-sweep 2s linear infinite;}
@keyframes txt-shimmer-sweep {
from { background-position: 100% 0; }
to { background-position: -100% 0; }
}
@media (prefers-reduced-motion: reduce) {
.txt-shimmer, .txt-shimmer *, .txt-shimmer::before, .txt-shimmer::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.