Frosted glass
A translucent pane over slowly moving color.
Frosted topic chips on a glass panel: pick one and it tints with the accent while a check draws in, and a CSS counter keeps the selected total. Real checkboxes and :has() for the state, no script.
Also known as: glassmorphism badge css, glass pill tags css, glass chip css.
<div class="gls-glass-filter-chips">
<span class="gls-glass-filter-chips-orb gls-glass-filter-chips-orb-a" aria-hidden="true"></span>
<span class="gls-glass-filter-chips-orb gls-glass-filter-chips-orb-b" aria-hidden="true"></span>
<div class="gls-glass-filter-chips-panel" role="group" aria-label="Filter by topic">
<p class="gls-glass-filter-chips-title">Filter by topic</p>
<div class="gls-glass-filter-chips-list">
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="design" checked><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>Design</label>
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="motion"><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>Motion</label>
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="css"><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>CSS</label>
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="glass" checked><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>Glass</label>
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="tailwind"><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>Tailwind</label>
<label class="gls-glass-filter-chips-chip"><input type="checkbox" name="gls-glass-filter-chips-topic" value="icons"><svg class="gls-glass-filter-chips-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg>Icons</label>
</div>
<div class="gls-glass-filter-chips-foot">
<span class="gls-glass-filter-chips-count">selected</span>
<a class="gls-glass-filter-chips-apply" href="#">Show results</a>
</div>
</div>
</div>.gls-glass-filter-chips {
--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: linear-gradient(160deg, color-mix(in srgb, var(--c) 50%, #0c4a6e), color-mix(in srgb, var(--c) 30%, #1e1b4b));
color: #fff;
font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
line-height: 1.3;
}
.gls-glass-filter-chips-orb {
position: absolute;
z-index: -1;
border-radius: 50%;
}
.gls-glass-filter-chips-orb-a {
right: 3em;
top: 0.4em;
width: 6.2em;
height: 6.2em;
background: linear-gradient(135deg, color-mix(in srgb, var(--c) 40%, #fff), var(--c));
animation: gls-glass-filter-chips-drift-a 8s ease-in-out infinite alternate;
}
.gls-glass-filter-chips-orb-b {
left: 3em;
bottom: 0.3em;
width: 5.4em;
height: 5.4em;
background: linear-gradient(135deg, #fdba74, #ec4899);
animation: gls-glass-filter-chips-drift-b 10s ease-in-out infinite alternate;
}
.gls-glass-filter-chips-panel {
width: 15.5em;
padding: 0.85em 0.95em 0.75em;
border-radius: 1.2em;
counter-reset: gls-glass-filter-chips-n;
background: color-mix(in srgb, #fff 16%, transparent);
-webkit-backdrop-filter: blur(0.9em) saturate(1.5);
backdrop-filter: blur(0.9em) saturate(1.5);
border: 1px solid color-mix(in srgb, #fff 45%, transparent);
box-shadow: 0 0.5em 1.5em -0.5em rgb(0 0 0 / 0.35), inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
}
.gls-glass-filter-chips-title {
margin: 0 0 0.65em;
font-size: 0.72em;
font-weight: 700;
}
.gls-glass-filter-chips-list {
display: flex;
flex-wrap: wrap;
gap: 0.35em;
}
.gls-glass-filter-chips-chip {
position: relative;
display: inline-flex;
align-items: center;
padding: 0.5em 0.85em;
border: 1px solid rgb(255 255 255 / 0.32);
border-radius: 99em;
background-color: rgb(255 255 255 / 0.1);
box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.3);
font-size: 0.64em;
font-weight: 600;
cursor: pointer;
transition: translate 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.gls-glass-filter-chips-chip input {
position: absolute;
inset: 0;
z-index: 3;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
}
.gls-glass-filter-chips-chip input:checked { counter-increment: gls-glass-filter-chips-n; }
.gls-glass-filter-chips-chip:hover {
translate: 0 -0.15em;
background-color: rgb(255 255 255 / 0.2);
}
.gls-glass-filter-chips-chip:has(input:checked) {
border-color: rgb(255 255 255 / 0.55);
background-color: color-mix(in srgb, var(--c) 72%, transparent);
box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.45), 0 0.35em 0.9em -0.35em var(--c);
}
.gls-glass-filter-chips-chip:has(input:focus-visible) { outline: 2px solid #fff; outline-offset: 0.15em; }
.gls-glass-filter-chips-check {
width: 0;
height: 1em;
margin-right: 0;
opacity: 0;
stroke-dasharray: 1;
stroke-dashoffset: 1;
transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), margin 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease, stroke-dashoffset 0.35s ease 0.1s;
}
.gls-glass-filter-chips-chip:has(input:checked) .gls-glass-filter-chips-check {
width: 1em;
margin-right: 0.35em;
opacity: 1;
stroke-dashoffset: 0;
}
.gls-glass-filter-chips-foot {
display: flex;
align-items: center;
justify-content: space-between;
margin-top: 0.75em;
padding-top: 0.6em;
border-top: 1px solid rgb(255 255 255 / 0.2);
}
.gls-glass-filter-chips-count { font-size: 0.62em; color: rgb(255 255 255 / 0.8); }
.gls-glass-filter-chips-count::before {
content: counter(gls-glass-filter-chips-n) " ";
color: #fff;
font-weight: 700;
}
.gls-glass-filter-chips-apply {
padding: 0.5em 1em;
border-radius: 99em;
background: #fff;
color: color-mix(in srgb, var(--c) 60%, #0f172a);
font-size: 0.62em;
font-weight: 700;
text-decoration: none;
transition: scale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.gls-glass-filter-chips-apply:hover { scale: 1.05; }
.gls-glass-filter-chips-apply:focus-visible { outline: 2px solid #fff; outline-offset: 0.15em; }
@keyframes gls-glass-filter-chips-drift-a {
to { transform: translate(-4em, 2em) scale(1.1); }
}
@keyframes gls-glass-filter-chips-drift-b {
to { transform: translate(4.5em, -1.5em) scale(0.9); }
}
@media (prefers-reduced-motion: reduce) {
.gls-glass-filter-chips, .gls-glass-filter-chips *, .gls-glass-filter-chips::before, .gls-glass-filter-chips::after, .gls-glass-filter-chips *::before, .gls-glass-filter-chips *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}--gls-color on the element or a parent.
Currently previewing #3b82f6.--gls-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.