I've run into an odd issue with the Rokkitt font. It only seems to rear its head above 99px (so 100px does it) and in Internet Explorer and Firefox.

Here is a JSFiddle illustrating the issue: https://jsfiddle.net/0yn08j68/7/embedded/result/

I don't know enough about font definitions to recognize if this is something simple to fix, but does anyone have an idea what might be causing it?