Child theme code for style.css

chidtheme.css

/*
Theme Name:     Twenty Twelve Child
Theme URI:      http://example.com/
Description:    Child theme for the Twenty Twelve theme
Author:         Your name here
Author URI:     http://example.com/about/
Template:       twentytwelve                             
Version:        0.1.0
*/

childtheme.less

/*
Theme Name: Lumir Theme
Description: A WordPress theme for Lumir based on Thematic
Author: Blue Sky Sessions
Author URI: http://blueskysessions.com
Version: 1.0.0
template: thematic
*/

// -------------------------------------------------------------- 
// Import Thematic main.css
// -------------------------------------------------------------- 

@import (less) '../thematic/library/css/main.css';