← The Modal Was Open. So Was Everything Behind It.Quiz
The inert attribute
Seven questions on what inert actually disables, how it differs from aria-hidden and tabindex="-1", and where its behavior surprises people.
questions7
pass mark70%
resultsat the end
No account needed. Answer all 7 questions, then see your score with every answer explained and a reference to the spec or MDN — pass and you can claim a certificate.