html-ppt-zhangzara-cobalt-grid
Helps your agent create business renewal and expansion proposals for clients. Shows realized value and ROI for B2B sales.
What it does
This tool creates HTML presentations with a specific visual style called 'Cobalt Grid'. It uses blue and white colors with a grid background for a serious and organized look.
When to use it
- ✓To create design or research reports.
- ✓To present architecture or art projects.
- ✓When you need a formal and clean look.
Example of what to ask your AI
“Create a presentation with the Cobalt Grid theme about the future of graphic design.”
Want more? Open the sections below.
How to use
The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.
Skill link
Ready-to-paste message
How it works
You start by copying a ready-made template and then replace the text and images with your own. It's important to keep the original visual style, without changing colors or fonts, to maintain the 'Cobalt Grid' look.
Installation
Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.
In the terminal (Claude Code, Codex, Cursor), in your project folder:
npx skills add nexu-io/open-design --skill html-ppt-zhangzara-cobalt-gridOr download just the file:
curl -L https://raw.githubusercontent.com/nexu-io/open-design/main/design-templates/html-ppt-zhangzara-cobalt-grid/SKILL.md -o SKILL.mdTechnical content (original SKILL.md)
Original text by the author, straight from GitHub.
Cobalt Grid
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.
At a glance
- Scheme: light
- Formality: high
- Density: medium
- Slides in demo: 8
Best for
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.
Avoid for
Decks that need warmth, multi-colour energy, or a casual / playful voice — the strict cobalt + cream + grid palette is intentionally austere.
Workflow
- Clone
example.htmlinto the user's workspace as the working file. - Replace placeholder content with the user's real headlines, body copy, numbers, names, dates, and section labels. Match existing dimensions when swapping image placeholders.
- Preserve the design system. Never substitute fonts, recolor the palette, restructure the layout grid, or strip decorative elements (corner brackets, paper grain, geometric shapes, illustrated SVGs). They are part of the identity.
- Adjust deck length by duplicating layouts. If the user has more content than the demo holds, duplicate an existing slide of the most appropriate layout. If less, drop slides from the bottom. Update page-number labels.
- Designing missing layouts: if a slide needs a layout the template 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.
- Keep the navigation runtime as shipped. If the deck ships an
assets/deck-stage.jsor inline keyboard handler, leave it intact.
Output contract
Emit between <artifact> tags:
<artifact identifier="zhangzara-cobalt-grid" type="text/html" title="Deck Title">
<!doctype html>
<html>...</html>
</artifact>
Source & license
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.
FAQ
Can I change the colors?
No, the 'Cobalt Grid' design is intentionally austere, using blue and white colors. Changing the colors goes against the intended style.
Can I use different fonts?
It's best to keep the original fonts to preserve the 'Cobalt Grid' visual identity.
How do I add more slides?
You can duplicate existing slide layouts to add more content while maintaining design consistency.
Details
Original description by the author
OpenDesign 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.
repo: nexu-io/open-design
Popularity
- GitHub stars
- 101k
- Ranking position
- #445
- License
- Apache-2.0
- Updated
- 10/16/2026
Comments
- …
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