Comment by strenholme

Having horizontal scroll is annoying, yes, but I don’t think it makes a website unusable on a mobile device.

The way to handle elements wide enough to induce horizontal scrolling is to put them in a <div> (or make CSS for the tag in question) and make CSS with overflow-x: scroll; for just that element. An example from one of my webpages:

  pre {max-width: 90vw; overflow-x: scroll;}