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Live block · try it
Freetimeline · dark · hover · click · scroll
Calendar Heatmap Timeline
A year of shipping as a contribution-style calendar heatmap: 365 cells fill in diagonally when the section appears, darker where more releases went out, with the year's milestones ringed; hover any day for its count, or pick a milestone from the list to light up its cell.
The mechanic
All derived from one array: shade = thresholds [0, 1–2, 3–5, 6–10, 11+]; longest streak = longest run of non-zero days; busiest weekday = argmax of weekday sums; the diagonal entry (`--d: col + row`) makes the year sweep in like a wave.
How to use it
From prompt to a block in your page.
- 01Try the block
The preview is the shipped block inside a neutral demo page. Scroll, hover, drag: everything is live.
- 02Pick a palette
Token sets re-tint the block live. The prompt carries the one you chose.
- 03Pick your stack
A paste-in snippet, or a component for Next.js, React, Vue, Astro, WordPress, Shopify or Webflow.
- 04Copy the prompt
It quotes the block's markup, styles and script verbatim with the tokens and the rules that keep it self-contained.
- 05Drop it into your page
Add the head lines it names, paste the block, replace the placeholder copy. Tokens live on :root.
