Anchoreum
Label museum exhibits using CSS anchor positioning
Anchoreum is a Codepip game about CSS anchor positioning. You work in a museum where dozens of exhibits need labels, and you mount each label with CSS so it sits next to its anchor. The label stays attached when the anchor moves, which used to need JavaScript.
Paid · Browser · Beginner
About Anchoreum
The game covers anchor-name, position-anchor, position-area, position-try and position-visibility, the anchor() and anchor-size() functions, and the anchor-center value. It is aimed at people with basic CSS knowledge who want to learn this newer feature.
The game is free and runs in the browser. A free Codepip account lets you save your progress.
On Breakpoint since 23 Oct 2026.