Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstract choices.
npxskills add sickn33/antigravity-awesome-skills--skill frontend-slidesLoading…
Create zero-dependency, animation-rich HTML presentations that run entirely in the browser.
You tend to converge toward generic, "on distribution" outputs. In frontend design, this creates what users call the "AI slop" aesthetic. Avoid this: make creative, distinctive frontends that surprise and delight.
Focus on:
Avoid generic AI-generated aesthetics:
Interpret creatively and make unexpected choices that feel genuinely designed for the context. Vary between light and dark themes, different fonts, different aesthetics. You still tend to converge on common choices (Space Grotesk, for example) across generations. Avoid this: it is critical that you think outside the box!
These invariants apply to EVERY slide in EVERY presentation:
.slide must have height: 100vh; height: 100dvh; overflow: hidden;clamp(min, preferred, max) — never fixed px/remmax-height constraintsmax-height: min(50vh, 400px)prefers-reduced-motion support-clamp(), -min(), -max() are silently ignored) — use calc(-1 * clamp(...)) insteadWhen generating, read viewport-base.css and include its full contents in every presentation.
| Slide Type | Maximum Content |
|---|---|
| Title slide | 1 heading + 1 subtitle + optional tagline |
| Content slide | 1 heading + 4-6 bullet points OR 1 heading + 2 paragraphs |
| Feature grid | 1 heading + 6 cards maximum (2x3 or 3x2) |
| Code slide | 1 heading + 8-10 lines of code |
| Quote slide | 1 quote (max 3 lines) + attribution |
| Image slide | 1 heading + 1 image (max 60vh height) |
Content exceeds limits? Split into multiple slides. Never cram, never scroll.
Determine what the user wants:
When enhancing existing presentations, viewport fitting is the biggest risk:
max-height: min(50vh, 400px). If slide already has max content, split into two slides.slide has overflow: hidden, new elements use clamp(), images have viewport-relative max-height, content fits at 1280x720When adding images to existing slides: Move image to new slide or reduce other content first. Never add images without checking if existing content already fills the viewport.
Ask ALL questions in a single AskUserQuestion call so the user fills everything out at once:
Question 1 — Purpose (header: "Purpose"): What is this presentation for? Options: Pitch deck / Teaching-Tutorial / Conference talk / Internal presentation
Question 2 — Length (header: "Length"): Approximately how many slides? Options: Short 5-10 / Medium 10-20 / Long 20+
Question 3 — Content (header: "Content"): Do you have content ready? Options: All content ready / Rough notes / Topic only
Question 4 — Inline Editing (header: "Editing"): Do you need to edit text directly in the browser after generation? Options:
Remember the user's editing choice — it determines whether edit-related code is included in Phase 3.
If user has content, ask them to share it.
If user selected "No images" → skip to Phase 2.
If user provides an image folder:
Logo in previews: If a usable logo was identified, embed it (base64) into each style preview in Phase 2 — the user sees their brand styled three different ways.
This is the "show, don't tell" phase. Most people can't articulate design preferences in words.
Ask how they want to choose (header: "Style"):
If direct selection: Show preset picker and skip to Phase 3. Available presets are defined in STYLE_PRESETS.md.
Ask (header: "Vibe", multiSelect: true, max 2): What feeling should the audience have? Options:
Based on mood, generate 3 distinct single-slide HTML previews showing typography, colors, animation, and overall aesthetic. Read STYLE_PRESETS.md for available presets and their specifications.
| Mood | Suggested Presets |
|---|---|
| Impressed/Confident | Bold Signal, Electric Studio, Dark Botanical |
| Excited/Energized | Creative Voltage, Neon Cyber, Split Pastel |
| Calm/Focused | Notebook Tabs, Paper & Ink, Swiss Modern |
| Inspired/Moved | Dark Botanical, Vintage Editorial, Pastel Geometry |
Save previews to .claude-design/slide-previews/ (style-a.html, style-b.html, style-c.html). Each should be self-contained, ~50-100 lines, showing one animated title slide.
Open each preview automatically for the user.
Ask (header: "Style"): Which style preview do you prefer? Options: Style A: [Name] / Style B: [Name] / Style C: [Name] / Mix elements
If "Mix elements", ask for specifics.
Generate the full presentation using content from Phase 1 (text, or text + curated images) and style from Phase 2.
If images were provided, the slide outline already incorporates them from Step 1.2. If not, CSS-generated visuals (gradients, shapes, patterns) provide visual interest — this is a fully supported first-class path.
Before generating, read these supporting files:
Key requirements:
<style> block/* === SECTION NAME === */ comment blockWhen converting PowerPoint files:
python scripts/extract-pptx.py <input.pptx> <output_dir> (install python-pptx if needed: pip install python-pptx).claude-design/slide-previews/ if it existsopen [filename].html to launch in browser:root CSS variables for colors, font link for typography, .reveal class for animations| File | Purpose | When to Read |
|---|---|---|
| STYLE_PRESETS.md | 12 curated visual presets with colors, fonts, and signature elements | Phase 2 (style selection) |
| viewport-base.css | Mandatory responsive CSS — copy into every presentation | Phase 3 (generation) |
| html-template.md | HTML structure, JS features, code quality standards | Phase 3 (generation) |
| animation-patterns.md | CSS/JS animation snippets and effect-to-feeling guide | Phase 3 (generation) |
| scripts/extract-pptx.py | Python script for PPT content extraction | Phase 4 (conversion) |
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
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Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
CLI to manage emails via IMAP/SMTP. Use `himalaya` to list, read, write, reply, forward, search, and organize emails from the terminal. Supports multiple accounts and message composition with MML (MIME Meta Language).