Two halves that add up in HTML & CSS
HTML & CSS interview exercise on Box model & units, difficulty 1 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.
The two inputs should sit side by side, each exactly half of the 400px container, with 10px of padding inside and a 1px border, and no wrapping. Right now width: 50% plus the padding and border adds up to more than the container, so the second one drops to the next line.
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.