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Get Started Free →Open Design renewal + seat-expansion business case for a growing customer: realized value, usage proof, and the expansion ROI. Built as a decision-grade B2B sales deck for champion, finance approver.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 10% | 0% |
| case-03 | ✗→✓ | ▲ Improved | 10% | 0% |
| case-07 | ✗→✓ | ▲ Improved | 10% | 0% |
| case-08 | ✗→✓ | ▲ Improved | 10% | 0% |
| case-09 | ✗→✓ | ▲ Improved | 10% | 0% |
> Electric cobalt italic serifs on a graph-paper canvas, anchored by stair-stepped pixel-glitch decorations and slim hairline rules.
A single self-contained HTML deck — typography, palette, decorative system, and slide vocabulary are all tuned together. Mixing layouts across templates breaks the system; stay inside this one.
Anything that should feel like a quietly serious design / research bulletin, art publication, or curated trend report. Strong for studio annuals, agency capabilities decks, design-research publications, architecture / art / academic decks, and any deck wanting one strict accent colour and a printed-ledger calmness rather than corporate polish.
Decks that need warmth, multi-colour energy, or a casual / playful voice — the strict cobalt + cream + grid palette is intentionally austere.
example.html into the user's workspace as the working file.numbers, names, dates, and section labels. Match existing dimensions when swapping image placeholders.
restructure the layout grid, or strip decorative elements (corner brackets, paper grain, geometric shapes, illustrated SVGs). They are part of the identity.
than the demo holds, duplicate an existing slide of the most appropriate layout. If less, drop slides from the bottom. Update page-number labels.
doesn't have, design it from scratch using the same fonts, palette, decorative vocabulary, spacing rhythm, and component grammar — never bail to a different template.
assets/deck-stage.js or inline keyboard handler, leave it intact.
Emit between <artifact> tags:
<artifact identifier="zhangzara-cobalt-grid" type="text/html" title="Deck Title">
<!doctype html>
<html>...</html>
</artifact>Vendored from upstream MIT-licensed zarazhangrui/beautiful-html-templates.
The full upstream MIT license text — including the original copyright notice — ships in this skill at LICENSE and must be redistributed alongside any copy of example.html, template.json, or any vendored assets/ runtime. See template.json for the upstream metadata snapshot.
Other measured skills in the registry, with their headline benchmark lift.