mozilla/kitsune — pull request #1009 by mythmon (2012-12-14 23:53:40+00:00)
Title: [Bug 821705] Don't use viewport units.

Viewport units (vh, vw, vmin, vmax) are not well supported yet, so as
cool as they are, we can't use them for the mobile banners. Switch to
using `pt`, which works pretty good, I just had to think harder.