DDRW / Educational interface
One row. Two expectations.
Click “Catalog” and the adjacent icon. Then switch options and compare where the same action leads.
Educational demo; user research and conversion growth were not measured.
Option A: text opens the category; a separate button expands subsections.
Example screen
Try the menu
The selected section appears here. The demo has no purchases, orders or form submissions.
On narrow screens, the layout fits the available width. In option B, the entire row is a button at least 56 CSS px high. This is a demo choice, not a WCAG conformance claim.