chriseppstein/compass — pull request #1445 by Snugug (2013-11-12 20:50:34+00:00)
Title: Added `main` element

The `main` element was [formally added to the HTML5 spec](http://html5doctor.com/the-main-element/) earlier this year and should be reset to `display: block`. `main` element added to both `"block"` and `"html5-block"`