I was just playing around with this last night, and I wanted the letters to be quite a bit closer together than the default, so I added a negative letter spacing. This works fine when I’m loading the page on my computer, but when I uploaded it to CodePen, I noticed it was looking janky and realized my negative letter spacing was being ignored. I’m using the same browser, Firefox. On the left is CodePen and on the right is how it looks when I just load the file in Firefox.
http://i.imgur.com/982TBqf.png
http://codepen.io/LuEm/pen/QbQVoo
Is there something I’m doing wrong?