A boilerplate template based on normalize.css. This theme is almost completely stripped of any design, and is useful as a basis to create your own custom themes.
The theme also includes a grid similar on the Twitter bootstrap grid system.
Clone the theme to where you keeps your repos.
Or download via GitHub:
Copy the contents of the repo (without the .git folder, unless you want to maintain a submodule) into the directory at your-site/addons/shared_addons/themes/normal.
I would recommend duplicating a copy of this theme and renaming it, and editing the new theme, leaving the origin in tact so other developers can see what you started with.
Go to Content > Pages in the PyroCMS admin and create a page called About (with the slug "about") to see the grid in action.
Tested in only up-to-date Chrome so far, but I would guess it will work right back to IE7.