fixes #15497: increase decimals on line-height-large from 1.33 to 1.3333333 to fix button sizing in Win 8.1 Chrome

  - remarkable has 100% support for [commonmark](http://jgm.github.io/CommonMark/spec.html)
  - [faster](https://github.com/jonschlinkert/remarkable/tree/master/benchmark)
  - easier to monkeypatch. this is a goal of ours, might be useful to you at some point given the custom tokenizing/parsing you're doing for documentation.

The customizer is such a PITA.