change hover boxes to display:none

[mbutterick]

So they get excluded from in-page searching.

[lexi-lambda]

Would this make the homepage inaccessible by screen readers?

[mbutterick]

Since @LeifAndersen raised the issue, I’ll let @LeifAndersen decide whether hiding the text from searches is more annoying than the current whack-a-mole.

[LeifAndersen]

@lexi-lambda brings up a good point. I'll give it a shot and see.

Thanks.