Frosted glass
Readable over anything
A heavy blur, a little grain and a soft inner glow.
Frosted Glass Panel
Heavy frosted glass with a fine grain, like sandblasted glass, over a slowly turning aurora. The grain is an inline SVG turbulence filter blended in with overlay, so text stays crisp.
Also known as: frosted glass css, frosted glass effect css, glass noise texture css.
HTML
<div class="gls-frosted-glass-panel">
<span class="gls-frosted-glass-panel-aurora" aria-hidden="true"></span>
<article class="gls-frosted-glass-panel-pane">
<svg class="gls-frosted-glass-panel-grain" aria-hidden="true" focusable="false">
<filter id="gls-frosted-glass-panel-noise"><feTurbulence type="fractalNoise" baseFrequency="0.85" numOctaves="3" stitchTiles="stitch"/><feColorMatrix type="saturate" values="0"/></filter>
<rect width="100%" height="100%" filter="url(#gls-frosted-glass-panel-noise)"/>
</svg>
<p class="gls-frosted-glass-panel-kicker">Frosted glass</p>
<h3 class="gls-frosted-glass-panel-title">Readable over anything</h3>
<p class="gls-frosted-glass-panel-text">A heavy blur, a little grain and a soft inner glow.</p>
</article>
</div>CSS
.gls-frosted-glass-panel {
--c: var(--gls-color, #3b82f6);
font-size: var(--gls-size, 16px);
position: relative;
display: grid;
place-items: center;
width: 22em;
height: 12em;
border-radius: 1.25em;
overflow: hidden;
isolation: isolate;
background: color-mix(in srgb, var(--c) 45%, #0f172a);
color: #fff;
font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
line-height: 1.3;
}
.gls-frosted-glass-panel-aurora {
position: absolute;
inset: -40%;
background:
radial-gradient(closest-side at 32% 40%, color-mix(in srgb, var(--c) 90%, #fff), transparent),
radial-gradient(closest-side at 68% 58%, #f472b6, transparent),
radial-gradient(closest-side at 50% 30%, #facc15, transparent 80%),
radial-gradient(closest-side at 40% 70%, #2dd4bf, transparent);
animation: gls-frosted-glass-panel-turn 14s linear infinite;
}
.gls-frosted-glass-panel-pane {
position: relative;
overflow: hidden;
width: 14em;
padding: 1.1em 1.25em 1.2em;
border: 1px solid rgb(255 255 255 / 0.35);
border-radius: 1.1em;
background: rgb(255 255 255 / 0.16);
-webkit-backdrop-filter: blur(1.5em) saturate(1.3);
backdrop-filter: blur(1.5em) saturate(1.3);
box-shadow: inset 0 0 1.6em rgb(255 255 255 / 0.14), inset 0 1px 0 rgb(255 255 255 / 0.5), 0 0.8em 2em -1em rgb(0 0 0 / 0.5);
}
.gls-frosted-glass-panel-grain {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
opacity: 0.35;
mix-blend-mode: overlay;
pointer-events: none;
}
.gls-frosted-glass-panel-kicker {
position: relative;
margin: 0;
font-size: 0.6em;
font-weight: 700;
letter-spacing: 0.14em;
text-transform: uppercase;
opacity: 0.8;
}
.gls-frosted-glass-panel-title {
position: relative;
margin: 0.25em 0 0;
font-size: 1.2em;
font-weight: 750;
letter-spacing: -0.01em;
}
.gls-frosted-glass-panel-text {
position: relative;
margin: 0.35em 0 0;
font-size: 0.75em;
color: rgb(255 255 255 / 0.85);
}
@keyframes gls-frosted-glass-panel-turn {
to { transform: rotate(1turn); }
}
@media (prefers-reduced-motion: reduce) {
.gls-frosted-glass-panel, .gls-frosted-glass-panel *, .gls-frosted-glass-panel::before, .gls-frosted-glass-panel::after, .gls-frosted-glass-panel *::before, .gls-frosted-glass-panel *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--gls-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--gls-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.