The Heads-Up Grid is an overlay grid for in-browser website development, built with HTML + CSS + JavaScript.
JavaScript
Latest commit e175900 Nov 10, 2012 @simanek Merge pull request #13 from dissolved/master
Default gridonload to "off"

README

The Heads-Up Grid is an overlay grid for in-browser website development, built with HTML + CSS + JavaScript.

Learn more at http://bohemianalps.com/tools/grid/