HTML5 LESS mixins 0.1 Sample.less @import "progress.less"; progress { .progress(); margin:10px 0 0; } progress.example2 { .progress(#cdcdcd,green,2px, 220px, 12px); margin:10px 0 0; } progress.example3 { .progress(#cdcdcd,blue,10px, 180px, 20px); margin:10px 0 0; }