Starter kit: the Cubefold CSS library

Palettes for isometric work start from one hue. Pick it, then shift only the lightness for the three faces, and cool the shadow slightly towards blue. Adding a second hue for accents is fine, but keep it to small elements such as windows or buttons, or the scene starts to look like a patchwork.

At a glance

Start with the floor

Responsive isometric scenes need a plan for narrow screens. Sometimes the answer is to scale everything down with clamp(), and sometimes it is to hide secondary blocks entirely. What rarely works is letting the scene overflow sideways, which makes the page scroll horizontally and feels broken on a phone.

Colour contrast still applies to illustrations that carry meaning. A bar chart drawn as blocks needs enough contrast between the bars and the floor, and labels on the faces need the same contrast as body text. Decorative scenes have more freedom, but we still avoid pale blocks on a pale background.

Isometric drawing keeps every parallel line parallel. There is no horizon and no vanishing point, so a block at the back of the scene is exactly as large as one at the front. That sounds like a limitation, but it is the reason the style works so well for diagrams: you can measure anything, compare anything, and line things up without fighting perspective.

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