One axis at a time: overflow-y

Level 3 of 10

Your goal

Add a vertical scrollbar only, with overflow-y: scroll. The content area gets narrower but keeps its full 100px height.

Must useoverflow-y

target content boxtarget outer edge (green = matched, red = not yet)

Feedback updates as you type, and your CSS is saved in this browser. Exact target numbers are in the Target panel.