Definition list. Which may be cheating 'cos really that takes at least 3 elements to cover properly.
@Wilto <h6>, because retconning semantic meaning onto markup obviously intended for (and inarguably used as) styling is bad, and we should feel bad.
Bonus points if you can find someone who'll earnestly argue that the only empirically correct number of heading levels is six—no more, no less.
input type=date
or datalist
the element i always thought was weird <input type=“radio”>
because input falls back to a text box.
Instead, why not
<label for=“ask-accept”>Do You Accept?</label>
<radio id=“ask-accept” name=“accept”>
<option
value=yes>Yes</option>
<option
value=no>No</option>
</radio>
@Wilto Seriously: <!DOCTYPE>
Why does it have a bang? Why is it all caps? Why isn’t it self-closing?
I genuinely want to know.