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.
- Added
- 2026-08-21
- Updated
- 2026-09-28
- Class
- Layout
- Deps
- 0
- Nets
- STATS
- CSS_GRID
- CSS_ONLY
- HAIRLINE
- NO_ASSETS
SEC·AReach for it when building
- summary strip at the top of a detail page
- dashboard KPI row
- account usage overview
- report header figures
- profile stats band
SEC·BPattern panes
Preview, source, and the prompt that rebuilds it.
Reporting only — the figures are the whole job.
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="cap">Reporting only — the figures are the whole job.</p>
<div class="hss-strip" role="list">
<div class="hss-tile" role="listitem"><span class="hss-label">Documents</span><span class="hss-fig">1,482</span><span class="hss-sub">this period</span></div>
<div class="hss-tile" role="listitem"><span class="hss-label">Median time</span><span class="hss-fig">3.2s</span><span class="hss-sub">last 24h</span></div>
<div class="hss-tile" role="listitem"><span class="hss-label">Clean runs</span><span class="hss-fig">98.4%</span><span class="hss-sub">no retries</span></div>
<div class="hss-tile" role="listitem"><span class="hss-label">Quality score</span><span class="hss-fig missing" aria-label="not available">—</span><span class="hss-sub">not rated yet</span></div>
</div>
<p class="cap">Same strip, working as the filter. Press a tile to narrow the list; press it again to clear.</p>
<div class="hss-strip five" data-hss-filter>
<button class="hss-tile" type="button" data-status="All" aria-pressed="true"><span class="hss-label">All</span><span class="hss-fig">6</span><span class="hss-sub">downloads</span></button>
<button class="hss-tile" type="button" data-status="Queued" aria-pressed="false"><span class="hss-label">Queued</span><span class="hss-fig">2</span><span class="hss-sub">downloads</span></button>
<button class="hss-tile" type="button" data-status="Downloading" aria-pressed="false"><span class="hss-label">Downloading</span><span class="hss-fig">1</span><span class="hss-sub">download</span></button>
<button class="hss-tile" type="button" data-status="Done" aria-pressed="false"><span class="hss-label">Done</span><span class="hss-fig">2</span><span class="hss-sub">downloads</span></button>
<button class="hss-tile" type="button" data-status="Failed" aria-pressed="false"><span class="hss-label">Failed</span><span class="hss-fig">1</span><span class="hss-sub">download</span></button>
</div>
<ul class="dl-list">
<li data-status="Done"><span>Bicycle drivetrain teardown</span><span class="st">Done</span></li>
<li data-status="Downloading"><span>Kiln firing, part three</span><span class="st">Downloading</span></li>
<li data-status="Queued"><span>Field recording — marsh at dawn</span><span class="st">Queued</span></li>
<li data-status="Done"><span>Lathe restoration, episode 12</span><span class="st">Done</span></li>
<li data-status="Failed"><span>Sourdough hydration tests</span><span class="st">Failed</span></li>
<li data-status="Queued"><span>Bookbinding: the long stitch</span><span class="st">Queued</span></li>
</ul>
<p class="dl-status" role="status" aria-live="polite">Showing all 6 downloads.</p>Colors come from shared theme tokens — --surface, --ink, --border, --accent and friends — so this CSS carries no palette of its own. Use Runnable file to copy the tokens along with it.
.hss-strip {
display: grid;
gap: 1px;
background: var(--border);
border: 1px solid var(--border);
border-radius: var(--radius);
overflow: hidden;
grid-template-columns: 1fr;
}
@container (min-width: 21rem) { .hss-strip { grid-template-columns: repeat(2, 1fr); } }
@container (min-width: 42rem) { .hss-strip { grid-template-columns: repeat(4, 1fr); } }
.hss-tile { background: var(--surface); padding: 0.9rem 1rem; min-width: 0; }
.hss-label {
font-family: ui-monospace, monospace;
font-size: 0.8125rem;
text-transform: uppercase;
letter-spacing: 0.08em;
color: var(--dim);
}
.hss-fig { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hss-fig.missing { color: var(--dim); }
button.hss-tile[aria-pressed="true"] {
background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}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.