@base: 663333; @complement1: spin(@base, 180); @complement2: darken(spin(@base, 180), 5%); @lighten1: lighten(@base, 15%); @lighten2: lighten(@base, 30%); @lighter1: lighten(spin(@base, 5), 10%); @lighter2: lighten(spin(@base, 10), 20%); @darker1: darken(spin(@base, -5), 10%); @darker2: darken(spin(@base, -10), 20%); .opacity (@opacity: 0.5) { -webkit-opacity: @opacity; -moz-opacity: @opacity; opacity: @opacity; } .border-radius (@radius: 5px) { -webkit-border-radius: @radius; -moz-border-radius: @radius; border-radius: @radius; } ... url in @import url ("../twentytwelve/style.css"); This is for wordpress stylesheet development, and with the space, the child theme doesn't load up the parent style.css. I just corrected it ... 