CSS3 has some new values for sizing things relative to the current viewport size: vw, vh, and vmin. It is relevant to bring up now, because it’s shipping in Chrome 20 (canary at the time of this writing). And not behind a flag, it just works. Production usage isn’t quite there, but it will be soon enough.
Why is this awesome?
There are many reasons. Here are two:
- There is a such thing as a comfortable line length for reading text on screens. I don’t want to kick a hornet’s nest, but let’s say its around 80 characters. These units
Article source: http://network.smashingmagazine.com/2012/04/30/viewport-sized-typography/