Who is on top in HTML & CSS
HTML & CSS interview exercise on Positioning & stacking, difficulty 2 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
Three boxes overlap on purpose. The card has z-index: 20. Make the dropdown float above the card and the toast above both, by positioning them and giving them higher stacking levels. Where the three overlap, the toast must be what you would click; where only card and menu overlap, the menu.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.