Hairline stat strip
A row of stat tiles joined by hairlines that are grid gap, not borders — the container paints the border color and the tiles paint the surface, so separators never double up or break when the row wraps — in a reporting form and in a second form where each tile is the filter for the list beneath it.
Reporting only — the figures are the whole job.
Documents
1,482
this period
Median time
3.2s
last 24h
Clean runs
98.4%
no retries
Quality score
No value
not rated yet
Same strip, working as the filter. Press a tile to narrow the list; press it again to clear.
- Bicycle drivetrain teardownDone
- Kiln firing, part threeDownloading
- Field recording — marsh at dawnQueued
- Lathe restoration, episode 12Done
- Sourdough hydration testsFailed
- Bookbinding: the long stitchQueued
Showing all 6 downloads.
<p class="hss-caption">Reporting only — the figures are the whole job.</p>
<div class="hss-strip four">
<div class="hss-tile">
<p class="hss-label">Documents</p>
<p class="hss-value">1,482</p>
<p class="hss-sub">this period</p>
</div>
<div class="hss-tile">
<p class="hss-label">Median time</p>
<p class="hss-value">3.2s</p>
<p class="hss-sub">last 24h</p>
</div>
<div class="hss-tile">
<p class="hss-label">Clean runs</p>
<p class="hss-value">98.4%</p>
<p class="hss-sub">no retries</p>
</div>
<div class="hss-tile">
<p class="hss-label">Quality score</p>
<p class="hss-value missing" aria-label="No value">—</p>
<p class="hss-sub">not rated yet</p>
</div>
</div>
<div class="hss-strip five" role="group" aria-label="Filter downloads by state">
<button class="hss-tile" type="button" aria-pressed="true" data-state="All">
<span class="hss-label">All</span><span class="hss-value">6</span><span class="hss-sub">downloads</span>
</button>
<!-- Queued · Downloading · Done · Failed follow the same shape -->
</div>.hss-strip {
display: grid;
gap: 1px; /* the hairline */
background: var(--border); /* shows through the gap */
border: 1px solid var(--border);
border-radius: var(--radius);
overflow: hidden;
grid-template-columns: 1fr;
}
@media (min-width: 21rem) { .hss-strip { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 42rem) {
.hss-strip.four { grid-template-columns: repeat(4, 1fr); }
.hss-strip.five { grid-template-columns: repeat(5, 1fr); }
}
.hss-tile { background: var(--surface); padding: 1rem 1.1rem; min-width: 0; }
.hss-label {
font: 500 0.8125rem/1.3 ui-monospace, monospace;
text-transform: uppercase; letter-spacing: 0.06em;
overflow-wrap: anywhere; /* fixes the 5-column overflow */
}
.hss-value { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-value.missing { opacity: 0.55; }
button.hss-tile[aria-pressed="true"] {
background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}const strip = document.querySelector('[data-hss-filter]');
const tiles = [...strip.querySelectorAll('button')];
const rows = [...document.querySelectorAll('.hss-list li')];
tiles.forEach((tile) => {
tile.addEventListener('click', () => {
const wasPressed = tile.getAttribute('aria-pressed') === 'true';
const filter = wasPressed ? 'All' : tile.dataset.state;
tiles.forEach((other) =>
other.setAttribute('aria-pressed', String(other.dataset.state === filter)));
rows.forEach((row) => {
row.hidden = filter !== 'All' && row.dataset.state !== filter;
});
});
});Build a strip of statistic tiles that reads as one joined instrument panel rather than a row of floating cards.
The separators between tiles must not be borders. Make the container a CSS grid with gap: 1px and give the container itself the border color as its background; each tile then paints the surface color on top. The 1px of container showing through the gap is the hairline. This is the entire pattern: real borders double where two tiles meet and leave a stray edge when auto-fit wraps the row, and a gap physically cannot do either.
The full prompt continues with sections on pinning column counts, tile anatomy, two rules of honesty (render a missing value as a dimmed em dash; keep units with the number), the filter form, computing counts from the unfiltered set, and using aria-pressed rather than tab roles.
:root { --surface:#fff; --border:#000; --accent:#000; --radius:0; }
.hss-strip {
display: grid;
gap: 1px; /* the hairline */
background: var(--border); /* shows through the gap */
border: 1px solid var(--border);
border-radius: var(--radius);
overflow: hidden;
grid-template-columns: 1fr;
}
@media (min-width: 21rem) { .hss-strip { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 42rem) {
.hss-strip.four { grid-template-columns: repeat(4, 1fr); }
.hss-strip.five { grid-template-columns: repeat(5, 1fr); }
}
.hss-tile { background: var(--surface); padding: 1rem 1.1rem; min-width: 0; }
.hss-label {
font: 500 0.8125rem/1.3 ui-monospace, monospace;
text-transform: uppercase; letter-spacing: 0.06em;
overflow-wrap: anywhere; /* fixes the 5-column overflow */
}
.hss-value { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-value.missing { opacity: 0.55; }
button.hss-tile[aria-pressed="true"] {
background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}
<p class="hss-caption">Reporting only — the figures are the whole job.</p>
<div class="hss-strip four">
<div class="hss-tile">
<p class="hss-label">Documents</p>
<p class="hss-value">1,482</p>
<p class="hss-sub">this period</p>
</div>
<div class="hss-tile">
<p class="hss-label">Median time</p>
<p class="hss-value">3.2s</p>
<p class="hss-sub">last 24h</p>
</div>
<div class="hss-tile">
<p class="hss-label">Clean runs</p>
<p class="hss-value">98.4%</p>
<p class="hss-sub">no retries</p>
</div>
<div class="hss-tile">
<p class="hss-label">Quality score</p>
<p class="hss-value missing" aria-label="No value">—</p>
<p class="hss-sub">not rated yet</p>
</div>
</div>
<div class="hss-strip five" role="group" aria-label="Filter downloads by state">
<button class="hss-tile" type="button" aria-pressed="true" data-state="All">
<span class="hss-label">All</span><span class="hss-value">6</span><span class="hss-sub">downloads</span>
</button>
<!-- Queued · Downloading · Done · Failed follow the same shape -->
</div>
<script>
const strip = document.querySelector('[data-hss-filter]');
const tiles = [...strip.querySelectorAll('button')];
const rows = [...document.querySelectorAll('.hss-list li')];
tiles.forEach((tile) => {
tile.addEventListener('click', () => {
const wasPressed = tile.getAttribute('aria-pressed') === 'true';
const filter = wasPressed ? 'All' : tile.dataset.state;
tiles.forEach((other) =>
other.setAttribute('aria-pressed', String(other.dataset.state === filter)));
rows.forEach((row) => {
row.hidden = filter !== 'All' && row.dataset.state !== filter;
});
});
});
</script>