[abusque]

Possibly off-topic, but the article isn't displaying[0] for me on Chromium 55.0.2883.87 (64-bit), running on Arch Linux, unless I go in the dev tools and manually remove "Fira Sans" from the font-family list in .container[1]. Not sure whether the problem is with me or the site, I'm surprised it doesn't fall-back to sans-serif before I override manually.

[0] http://i.imgur.com/qJKSvMC.png [1] http://i.imgur.com/zYDZrtr.png

[segf4ult]

That's weird. I'll look into a fix.

Edit: I couldn't reproduce this with Chromium on Ubuntu 16.10. I might set up an Arch Linux box to see if that makes a difference.

[krzyk]

It happens on my Firefox 52 on Debian. I also have ublock origin installed.

Maybe you use some strange fonts?

[glandium]

Same here with Firefox.