avatar hidden text shows up with browser in-page search (Cmd-F)

[ghost]

I'd recommend throwing some Bourbon on it (@include hide-text)

looks like overflow:hidden is not respected in text-search mode in some (many?) browsers, so the text gets un-indented/scrolled into the visible area.

[ghost]

chapstick issue: https://bugz.meetup.com/show_bug.cgi?id=45701

[akdetrick]

depends on #328