Small screen font size inflation

[gwmatthews]

I first noticed this issue with xaringan which is based on remark, but it is an issue here as well.

On small screens, like my Android mobile phone, the Chrome browser inflates small font sizes such that they overflow the viewable area of a slide. As an example, try viewing this slide: https://remarkjs.com/#5 on a mobile browser.

Here's what it looks like on my phone:

In xaringan including the following in the css fixed the problem, and I imagine it might here too:

/*   prevent small screen font size inflation */

body {
  -webkit-text-size-adjust: none;
  -moz-text-size-adjust: none;
  -ms-text-size-adjust: none;
}

Cheers!
George