Container-Query Card
A card whose internal layout adapts to its *container* width using `@container` queries — not the viewport. Below 320px it stacks vertically; above 320px it splits horizontal. Modern responsive design without media queries.
The code
<div class="gl-cq">
<section class="gl-cq-card gl-cq-wide">
<article class="gl-cq-inner">
<span class="gl-cq-name">Container ≥ 320px</span>
<header class="gl-cq-img">
<strong>Image</strong>
<span class="gl-cq-coord">img · col 1</span>
</header>
<div class="gl-cq-body">
<h4>Card with container queries</h4>
<p>Resize the card and the layout switches — no media query, no JS.</p>
<span class="gl-cq-coord gl-cq-coord-light">body · col 2 · @container ≥ 320px</span>
</div>
</article>
</section>
<section class="gl-cq-card gl-cq-narrow">
<article class="gl-cq-inner">
<span class="gl-cq-name">Container < 320px</span>
<header class="gl-cq-img">
<strong>Image</strong>
<span class="gl-cq-coord">img · row 1</span>
</header>
<div class="gl-cq-body">
<h4>Stacks below 320px</h4>
<p>Same component. Different container width.</p>
<span class="gl-cq-coord gl-cq-coord-light">body · row 2 · @container < 320px</span>
</div>
</article>
</section>
</div> <div class="gl-cq">
<section class="gl-cq-card gl-cq-wide">
<article class="gl-cq-inner">
<span class="gl-cq-name">Container ≥ 320px</span>
<header class="gl-cq-img">
<strong>Image</strong>
<span class="gl-cq-coord">img · col 1</span>
</header>
<div class="gl-cq-body">
<h4>Card with container queries</h4>
<p>Resize the card and the layout switches — no media query, no JS.</p>
<span class="gl-cq-coord gl-cq-coord-light">body · col 2 · @container ≥ 320px</span>
</div>
</article>
</section>
<section class="gl-cq-card gl-cq-narrow">
<article class="gl-cq-inner">
<span class="gl-cq-name">Container < 320px</span>
<header class="gl-cq-img">
<strong>Image</strong>
<span class="gl-cq-coord">img · row 1</span>
</header>
<div class="gl-cq-body">
<h4>Stacks below 320px</h4>
<p>Same component. Different container width.</p>
<span class="gl-cq-coord gl-cq-coord-light">body · row 2 · @container < 320px</span>
</div>
</article>
</section>
</div>.gl-cq {
display: grid;
grid-template-columns: 1fr 260px;
gap: 18px;
width: 100%;
min-height: 480px;
padding: 22px;
background:
radial-gradient(60% 80% at 50% 0%, rgba(20,184,166,0.14), transparent 60%),
#042022;
font-family: 'Inter', system-ui, sans-serif;
color: #ccfbf1;
box-sizing: border-box;
align-items: stretch;
}
.gl-cq-card {
container-type: inline-size;
background: #0d3030;
border: 1px solid rgba(20,184,166,0.28);
border-radius: 14px;
padding: 16px;
}
.gl-cq-inner {
display: grid;
gap: 14px;
grid-template-columns: 1fr;
grid-template-rows: auto auto 1fr;
grid-template-areas: "name" "img" "body";
}
.gl-cq-name {
grid-area: name;
font-family: 'JetBrains Mono', monospace;
font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
color: #2dd4bf;
background: rgba(20,184,166,0.14);
padding: 4px 10px; border-radius: 999px;
align-self: flex-start; justify-self: flex-start;
}
.gl-cq-img {
grid-area: img;
background: linear-gradient(135deg, #14b8a6, #0d9488);
min-height: 120px;
border-radius: 10px;
padding: 14px;
display: flex; flex-direction: column;
justify-content: space-between;
color: #042022;
margin: 0;
}
.gl-cq-img strong { font-size: 16px; font-weight: 700; }
.gl-cq-coord {
font-family: 'JetBrains Mono', monospace;
font-size: 10px; letter-spacing: 0.04em;
align-self: flex-start;
padding: 2px 8px; border-radius: 999px;
background: rgba(4,32,34,0.25); color: #042022;
}
.gl-cq-coord-light { color: #2dd4bf; background: rgba(20,184,166,0.14); }
.gl-cq-body {
grid-area: body;
padding: 4px 2px;
display: flex; flex-direction: column;
gap: 6px;
}
.gl-cq-body h4 { margin: 0; font-size: 14px; font-weight: 700; color: #fff; }
.gl-cq-body p { margin: 0; font-size: 12.5px; color: #99d4cb; line-height: 1.5; }
.gl-cq-body .gl-cq-coord { align-self: flex-start; }
@container (min-width: 320px) {
.gl-cq-inner {
grid-template-columns: 180px 1fr;
grid-template-rows: auto 1fr;
grid-template-areas:
"name name"
"img body";
}
.gl-cq-inner .gl-cq-img { min-height: 200px; }
.gl-cq-inner .gl-cq-body { justify-content: center; }
}
.gl-cq-narrow { max-width: 260px; }
@media (max-width: 720px) {
.gl-cq { grid-template-columns: 1fr; }
.gl-cq-narrow { max-width: 100%; }
} .gl-cq {
display: grid;
grid-template-columns: 1fr 260px;
gap: 18px;
width: 100%;
min-height: 480px;
padding: 22px;
background:
radial-gradient(60% 80% at 50% 0%, rgba(20,184,166,0.14), transparent 60%),
#042022;
font-family: 'Inter', system-ui, sans-serif;
color: #ccfbf1;
box-sizing: border-box;
align-items: stretch;
}
.gl-cq-card {
container-type: inline-size;
background: #0d3030;
border: 1px solid rgba(20,184,166,0.28);
border-radius: 14px;
padding: 16px;
}
.gl-cq-inner {
display: grid;
gap: 14px;
grid-template-columns: 1fr;
grid-template-rows: auto auto 1fr;
grid-template-areas: "name" "img" "body";
}
.gl-cq-name {
grid-area: name;
font-family: 'JetBrains Mono', monospace;
font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
color: #2dd4bf;
background: rgba(20,184,166,0.14);
padding: 4px 10px; border-radius: 999px;
align-self: flex-start; justify-self: flex-start;
}
.gl-cq-img {
grid-area: img;
background: linear-gradient(135deg, #14b8a6, #0d9488);
min-height: 120px;
border-radius: 10px;
padding: 14px;
display: flex; flex-direction: column;
justify-content: space-between;
color: #042022;
margin: 0;
}
.gl-cq-img strong { font-size: 16px; font-weight: 700; }
.gl-cq-coord {
font-family: 'JetBrains Mono', monospace;
font-size: 10px; letter-spacing: 0.04em;
align-self: flex-start;
padding: 2px 8px; border-radius: 999px;
background: rgba(4,32,34,0.25); color: #042022;
}
.gl-cq-coord-light { color: #2dd4bf; background: rgba(20,184,166,0.14); }
.gl-cq-body {
grid-area: body;
padding: 4px 2px;
display: flex; flex-direction: column;
gap: 6px;
}
.gl-cq-body h4 { margin: 0; font-size: 14px; font-weight: 700; color: #fff; }
.gl-cq-body p { margin: 0; font-size: 12.5px; color: #99d4cb; line-height: 1.5; }
.gl-cq-body .gl-cq-coord { align-self: flex-start; }
@container (min-width: 320px) {
.gl-cq-inner {
grid-template-columns: 180px 1fr;
grid-template-rows: auto 1fr;
grid-template-areas:
"name name"
"img body";
}
.gl-cq-inner .gl-cq-img { min-height: 200px; }
.gl-cq-inner .gl-cq-body { justify-content: center; }
}
.gl-cq-narrow { max-width: 260px; }
@media (max-width: 720px) {
.gl-cq { grid-template-columns: 1fr; }
.gl-cq-narrow { max-width: 100%; }
}