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CHT-006Calendar heatmap

CHT-006

Calendar heatmap

  • Cells, one week per column, pop in like a wave.

Draw daily values as a calendar heatmap with one week per column. Cells pop in like a wave starting from the leftmost week, and larger values are a deeper [colour]. Give the largest day an outline and its value, with month names on top and weekdays on the left.

[paste your table here]

The first row is the header. Put CSS and JavaScript in a single HTML file and draw with canvas or SVG, without external libraries. Dark background, crisp numbers and text, and no overlapping text even at phone width. If prefers-reduced-motion is on, show the finished chart without motion.

Blanks

How to use

  1. Borrow (copy) the prompt.
  2. Replace the [brackets] with your own content. Type in the fields below and it updates at once.
  3. Paste it into a new Claude chat and open the HTML file it returns in a browser.

Process

  1. A scene from the guide "Animated data charts with Claude".
  2. The preview is drawn on this site to show the scene this prompt makes.

Same class CHT