visual-page-builder

Generate beautiful self-contained HTML pages that explain any concept visually

SKILL.md

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Visual Page Builder

Generate a polished, self-contained HTML page that explains any concept using visual components. No frameworks, no dependencies, no build step. One file that looks like a real product page.

Page Types

Type Best for Key components
Architecture Overview Systems, tech stacks, infrastructure Flow diagram, connection lines, component cards
Comparison Table Tool vs tool, plan vs plan, before vs after Side-by-side grids, checkmarks, highlight winner
Process Flow Tutorials, onboarding, how-to guides Numbered steps, arrows, status indicators
Timeline Roadmaps, project history, changelogs Vertical timeline, date markers, milestone cards
Dashboard Metrics, KPIs, performance summaries Stat cards, bar charts, progress rings
Concept Explainer Abstract ideas, frameworks, mental models Analogy visuals, layered diagrams, callout boxes
Project Recap End-of-project summaries, case studies Before/after, stats, testimonial cards, gallery

Ask the user which type fits their content, or auto-detect from their description.

Workflow

Step 1: Gather Content

Ask the user for:

  • Title of the page
  • 3-6 sections they want to cover (or let you suggest based on the topic)
  • Key data points (numbers, stats, comparisons)
  • Relationships between concepts (what connects to what)
  • Hierarchy (what is most important, what is supporting detail)

If the user provides a document, transcript, or notes, extract these elements automatically and confirm.

Step 2: Plan the Layout

Map each section to a visual component (see Visual Components below). Present the plan:

Section 1: "What is X" -> Concept card with icon + 3 key points
Section 2: "How it works" -> 4-step process flow with arrows
Section 3: "Performance" -> Stat cards (3 across) + comparison grid
Section 4: "Get started" -> Callout box with CTA

Get user approval before building.

Step 3: Build the HTML

Generate a single self-contained HTML file.

Design System:

Token Value
Background #0f0f10
Surface #1a1a1d
Surface border #2a2a2d
Text primary #ffffff
Text secondary #a0a0a0
Accent #D97757 (or user-chosen)
Accent muted rgba(217, 119, 87, 0.15)
Font Inter via Google Fonts, fallback system-ui, sans-serif
Max width 1000px
Card radius 12px
Section spacing 80px vertical

Visual Components Available:

Component When to use Structure
Stat cards Key numbers Horizontal row, large number + label + optional trend arrow
Section cards Feature lists, grouped info Grid of cards with icon/emoji, title, description
Comparison grid Side-by-side analysis 2-3 columns, rows with checkmarks or values
Flow steps Sequential processes Numbered circles connected by lines, title + description
Status badges Tags, categories, states Colored pill badges (green/yellow/red/blue)
Code blocks Technical content, configs Dark bg, monospace font, syntax-highlighted if applicable
Callout boxes Important notes, warnings, tips Accent left border, icon, highlighted background
Progress bars Completion, capacity, scores Horizontal bar with fill percentage and label
Tables Structured data, specs Striped rows, sticky header, responsive scroll
Timelines Chronological events Vertical line with dots, alternating left/right cards
Quote blocks Testimonials, key statements Large quotation mark, italic text, attribution
Icon grids Feature overviews, tool lists 2-3 column grid with emoji + title + one-line desc

Step 4: Save and Preview

Save the file as [topic-slug]-visual.html in the current working directory.

Open in the default browser:

open [topic-slug]-visual.html

Step 5: Iterate

Ask: "How does it look? I can adjust colors, swap components, add sections, or change any text."

Common tweaks:

  • Change accent color
  • Add or remove sections
  • Swap a component type (e.g., table to comparison grid)
  • Adjust text content
  • Add a logo or header image (base64 inline)

Rules

  • Every section needs a visual component. No section should be just a wall of text. If there is no obvious visual, use a callout box or icon grid.
  • Max 50 words before a visual. Introductory text for a section must be short. Let the visual do the heavy lifting.
  • All CSS and JS inline. Zero external dependencies. The file must work when double-clicked from the desktop with no server.
  • Zero external fetches required. Google Fonts is the one allowed exception (with system font fallback). Everything else is inline.
  • Responsive. Must look good on mobile (stack grids to single column, scale stat cards, scrollable tables).
  • No JavaScript required for content. JS is only for optional enhancements (smooth scroll, fade-in animations). The page must be fully readable with JS disabled.
  • Consistent spacing. Use the design system tokens. Do not eyeball padding or margins.
  • Dark theme only. Do not offer a light mode. The dark palette is part of the brand.
  • Accessible. Sufficient color contrast (WCAG AA minimum), semantic HTML, alt text on images.
  • Keep the total file under 500KB. If inlining images, compress them first.
  • The page title should appear in the browser tab (title tag).