My favorite text-related thing in websites is the layouts with enormous amounts of screen real estate that still put important information (like song or film titles) in a single line that ends up truncated with ellipses (with bonus points when they don't even implement a tooltip that would show you the whole thing). Like, wrapping text and having the rest of the UI flow beneath it has been easy to do in any language for literally decades, but somehow programmers don't know how to do it and designers get pissed if you make them even think about that.