see https://github.com/abnun/grails-nine-sixty-grid-system for the docs.

Including the resources

You must use the Grails resources framework to make use of this plugin. The resources exposed by this plugin are:

• 960 - the core 960gs css
• reset - CSS reset used by 960gs
• text - default text styling used by 960gs

Usage

<r:require modules="nine-sixty-grid-system"/>