html-ppt

# html-ppt — HTML PPT Studio Author professional HTML presentations as static files. One theme file = one look. One layout file = one page type. One animation class = one entry effect. All pages share a token-based design system in `assets/base.css`. ## Install ```bash npx skills add https://github.com/lewislulu/html-ppt-skill ``` One command, no build. Pure static HTML/CSS/JS with only CDN webfonts. ## What the skill gives you - **36 themes** (`assets/themes/*.css`) — minimal-white, editorial-serif, soft-pastel, sharp-mono, arctic-cool, sunset-warm, catppuccin-latte/mocha, dracula, tokyo-night, nord, solarized-light, gruvbox-dark, rose-pine, neo-brutalism, glassmorphism, bauhaus, swiss-grid, terminal-green, xiaohongshu-white, rainbow-gradient, aurora, blueprint, memphis-pop, cyberpunk-neon, y2k-chrome, retro-tv, japanese-minimal, vaporwave, midcentury, corporate-clean, academic-paper, news-broadcast, pitch-deck-vc, magazine-bold, engineering-whiteprint - **15 full-deck templates** (`templates/full-decks/<name>/`) — complete multi-slide decks with scoped `.tpl-<name>` CSS. 8 extracted from real-world decks (xhs-white-editorial, graphify-dark-graph, knowledge-arch-blueprint, hermes-cyber-terminal, obsidian-claude-gradient, testing-safety-alert, xhs-pastel-card, dir-key-nav-minimal), 7 scenario scaffolds (pitch-deck, product-launch, tech-sharing, weekly-report, xhs-post 3:4, course-module, **presenter-mode-reveal** — dedicated to presenter mode) - **31 layouts** (`templates/single-page/*.html`) with realistic demo data - **27 CSS animations** (`assets/animations/animations.css`) via `data-anim` - **20 canvas FX animations** (`assets/animations/fx/*.js`) via `data-fx` — particle-burst, confetti-cannon, firework, starfield, matrix-rain, knowledge-graph (force-directed), neural-net (pulses), constellation, orbit-ring, galaxy-swirl, word-cascade, letter-explode, chain-react, magnetic-field, data-stream, gradient-blob, sparkle-trail, shockwave, typewriter-multi, counter-explosion - **Keyboard runtime** (`assets/runtime.js`) — arrows, T (theme), A (anim), F/O, **S (presenter mode: magnetic-card popup with CURRENT / NEXT / SCRIPT / TIMER cards)**, N (notes drawer), R (reset timer in presenter) - **FX runtime** (`assets/animations/fx-runtime.js`) — auto-inits `[data-fx]` on slide enter, cleans up on leave - **Showcase decks** for themes / layouts / animations / full-decks gallery - **Headless Chrome render script** for PNG export ## When to use Use when the user asks for any kind of slide-based output or wants to turn text/notes into a presentable deck. Prefer this over building from scratch. ### 🎤 Presenter Mode (speaker script + word-for-word notes) If the user mentions any of: **speech / talk / speaker notes / word-for-word script / presenter view / presenter display / teleprompter**, or says things like "I need to present xxx to my team", "I'm doing a tech talk", "I'm worried I'll stumble", "I want a PPT with a full script" — **use the `presenter-mode-reveal` full-deck template** and write 150–300 words of word-for-word script in each slide's `<aside class="notes">`. See [references/presenter-mode.md](references/presenter-mode.md) for the full authoring guide including the 3 rules of speaker script writing: 1. **It's not a script, it's a cue** — bold the core terms, put transition sentences on their own line 2. **150–300 words per page** — a 2–3 minute pace per page 3. **Use spoken language, not written language** — prefer conversational phrasing over formal/written phrasing All full-deck templates support the S key presenter mode (it's built into `runtime.js`). **S opens a new popup window with 4 magnetic cards**: - 🔵 **CURRENT** — pixel-perfect iframe preview of the current slide - 🟣 **NEXT** — pixel-perfect iframe preview of the next slide - 🟠 **SPEAKER SCRIPT** — large-font word-for-word script (scrollable) - 🟢 **TIMER** — elapsed time + slide counter + prev/next/reset buttons Each card is **draggable by its header** and **resizable by the bottom-right corner handle**. Card positions/sizes persist to `localStorage` per deck. A "Reset layout" button restores the default arrangement. **Why the previews are pixel-perfect**: each preview is an `<iframe>` that loads the actual deck HTML with a `?preview=N` query param; `runtime.js` detects this and renders only slide N with no chrome. So the preview uses the **same CSS, theme, fonts, and viewport as the audience view** — colors and layout are guaranteed identical. **Smooth navigation**: on slide change, the presenter window sends `postMessage({type:'preview-goto', idx:N})` to each iframe. The iframe just toggles `.is-active` between slides — **no reload, no flicker**. The two windows also stay in sync via `BroadcastChannel`. Only `presenter-mode-reveal` is designed from the ground up around the feature with a proper example word-for-word script on every slide. Keyboard in presenter window: `← →` navigate (syncs audience) · `R` reset timer · `Esc` close popup. Keyboard in audience window: `S` open presenter · `T` cycle theme · `← →` navigate (syncs presenter) · `F` fullscreen · `O` overview. ## Before you author anything — ALWAYS ask or recommend **Do not start writing slides until you understand three things.** Either ask the user directly, or — if they already handed you rich content — propose a tasteful default and confirm. 1. **Content & audience.** What's the deck about, how many slides, who's watching (engineers / execs / Xiaohongshu readers / students / VC)? 2. **Style / theme.** Which of the 36 themes fits? If unsure, recommend 2-3 candidates based on tone: - Business / investor pitch → `pitch-deck-vc`, `corporate-clean`, `swiss-grid` - Tech sharing / engineering → `tokyo-night`, `dracula`, `catppuccin-mocha`, `terminal-green`, `blueprint` - Xiaohongshu image-text post → `xiaohongshu-white`, `soft-pastel`, `rainbow-gradient`, `magazine-bold` - Academic / report → `academic-paper`, `editorial-serif`, `minimal-white` - Edgy / cyber / launch → `cyberpunk-neon`, `vaporwave`, `y2k-chrome`, `neo-brutalism` 3. **Starting point.** One of the 14 full-deck templates, or scratch? Point to the closest `templates/full-decks/<name>/` and ask if it fits. If the user's content suggests something obvious (e.g. "I want to do a product launch" → `product-launch`), propose it confidently instead of asking blindly. A good opening message looks like: > I can put this PPT together for you! Let's confirm three things first: > 1. Roughly what's the content / page count / who's the audience? > 2. Style preference? I'd suggest picking one of these 3 themes: `tokyo-night` (a great default for tech sharing), `xiaohongshu-white` (Xiaohongshu style), `corporate-clean` (formal reporting). > 3. Want to use my ready-made `tech-sharing` full-deck template as a base? Only after those are clear, scaffold the deck and start writing. ## Quick start 1. **Scaffold a new deck.** From the repo root: ```bash ./scripts/new-deck.sh my-talk open examples/my-talk/index.html ``` 2. **Pick a theme.** Open the deck and press `T` to cycle. Or hard-code it: ```html <link rel="stylesheet" id="theme-link" href="../assets/themes/aurora.css"> ``` Catalog in [references/themes.md](references/themes.md). 3. **Pick layouts.** Copy `<section class="slide">...</section>` blocks out of files in `templates/single-page/` into your deck. Replace the demo data. Catalog in [references/layouts.md](references/layouts.md). 4. **Add animations.** Put `data-anim="fade-up"` (or `class="anim-fade-up"`) on any element. On `<ul>`/grids, use `anim-stagger-list` for sequenced reveals. For canvas FX, use `<div data-fx="knowledge-graph">...</div>` and include `<script src="../assets/animations/fx-runtime.js"></script>`. Catalog in [references/animations.md](references/animations.md). 5. **Use a full-deck template.** Copy `templates/full-decks/<name>/` into `examples/my-talk/` as a starting point. Each folder is self-contained with scoped CSS. Catalog in [references/full-decks.md](references/full-decks.md) and gallery at `templates/full-decks-index.html`. 6. **Render to PNG.** ```bash ./scripts/render.sh templates/theme-showcase.html # one shot ./scripts/render.sh examples/my-talk/index.html 12 # 12 slides ``` ## Authoring rules (important) - **Always start from a template.** Don't author slides from scratch — copy the closest layout from `templates/single-page/` first, then replace content. - **Use tokens, not literal colors.** Every color, radius, shadow should come from CSS variables defined in `assets/base.css` and overridden by a theme. Good: `color: var(--text-1)`. Bad: `color: #111`. - **Don't invent new layout files.** Prefer composing existing ones. Only add a new `templates/single-page/*.html` if none of the 30 fit. - **Respect chrome slots.** `.deck-header`, `.deck-footer`, `.slide-number` and the progress bar are provided by `assets/base.css` + `runtime.js`. - **Keyboard-first.** Always include `<script src="../assets/runtime.js"></script>` so the deck supports ← → / T / A / F / S / O / hash deep-links. - **One `.slide` per logical page.** `runtime.js` makes `.slide.is-active` visible; all others are hidden. - **Supply notes.** Wrap speaker notes in `<div class="notes">…</div>` inside each slide. Press S to open the overlay. - **NEVER put presenter-only text on the slide itself.** Descriptive text like "This page shows..." or "Speaker: you can add here..." or small explanatory captions aimed at the presenter MUST go inside `<div class="notes">`, NOT as visible `<p>` / `<span>` elements on the slide. The `.notes` class is `display:none` by default — it only appears in the S overlay. Slides should contain ONLY audience-facing content (titles, bullet points, data, charts, images). ## Writing guide See [references/authoring-guide.md](references/authoring-guide.md) for a step-by-step walkthrough: file structure, naming, how to transform an outline into a deck, how to choose layouts and themes per audience, how to do a Chinese + English deck, and how to export. ## Catalogs (load when needed) - [references/themes.md](references/themes.md) — all 36 themes with when-to-use. - [references/layouts.md](references/layouts.md) — all 31 layout types. - [references/animations.md](references/animations.md) — 27 CSS + 20 canvas FX animations. - [references/full-decks.md](references/full-decks.md) — all 15 full-deck templates. - [references/presenter-mode.md](references/presenter-mode.md) — **presenter mode + word-for-word script authoring guide (must-read for tech talks/speeches)**. - [references/authoring-guide.md](references/authoring-guide.md) — full workflow. ## File structure ``` html-ppt/ ├── SKILL.md (this file) ├── references/ (detailed catalogs, load as needed) ├── assets/ │ ├── base.css (tokens + primitives — do not edit per deck) │ ├── fonts.css (webfont imports) │ ├── runtime.js (keyboard + presenter + overview + theme cycle) │ ├── themes/*.css (36 token overrides, one per theme) │ └── animations/ │ ├── animations.css (27 named CSS entry animations) │ ├── fx-runtime.js (auto-init [data-fx] on slide enter) │ └── fx/*.js (20 canvas FX modules: particles/graph/fireworks…) ├── templates/ │ ├── deck.html (minimal 6-slide starter) │ ├── theme-showcase.html (36 slides, iframe-isolated per theme) │ ├── layout-showcase.html (iframe tour of all 31 layouts) │ ├── animation-showcase.html (20 FX + 27 CSS animation slides) │ ├── full-decks-index.html (gallery of all 14 full-deck templates) │ ├── full-decks/<name>/ (14 scoped multi-slide deck templates) │ └── single-page/*.html (31 layout files with demo data) ├── scripts/ │ ├── new-deck.sh (scaffold a deck from deck.html) │ └── render.sh (headless Chrome → PNG) └── examples/demo-deck/ (complete working deck) ``` ## Rendering to PNG `scripts/render.sh` wraps headless Chrome at `/Applications/Google Chrome.app/Contents/MacOS/Google Chrome`. For multi-slide capture, runtime.js exposes `#/N` deep-links, and render.sh iterates 1..N. ```bash ./scripts/render.sh templates/single-page/kpi-grid.html # single page ./scripts/render.sh examples/demo-deck/index.html 8 out-dir # 8 slides, custom dir ``` ## Keyboard cheat sheet ``` ← → Space PgUp PgDn Home End navigate F fullscreen S open presenter window (magnetic cards: current/next/script/timer) N quick notes drawer (bottom overlay) R reset timer (in presenter window) ?preview=N URL param — force preview-only mode (single slide, no chrome) O slide overview grid T cycle themes (reads data-themes attr) A cycle demo animation on current slide #/N in URL deep-link to slide N Esc close all overlays ``` ## License & author MIT. Copyright (c) 2026 lewis &lt;sudolewis@gmail.com&gt;.