Dream snaps

Style dream snaps:

![screen shot 2014-12-17 at 17 13 12](https://cloud.githubusercontent.com/assets/867233/5475349/0049f5b2-8610-11e4-9800-03d2a4302cfb.png)

http://www.browserstack.com/screenshots/ea02ddf127691755841f8e8420888aaf5af471b4
You could just use `(-$gs-gutter * .25)` instead, not sure if it's easier to read but feels cleaner.