Perplexed at Events 2 skill test

https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Test_your_skills:_Events#events_2
Hi there,
I am stuck and wondering if anyone could give me a hint what I should do to complete it? My assumption was to use “keydown” event listener, but there is no <input> or <textarea> to fire this event. So I do not know to what element I should append my addEventListener.

No help is needed anymore.