$max-width: em(920) $mobile: new-breakpoint(max-width 480px) section#wrapper @include outer-container border: rhythm() solid transparent @include media($mobile) border: rhythm(0.5) solid transparent header @include span-columns(12) @include omega() footer @include span-columns(12) @include omega() section#page padding: rhythm(2) @include media($mobile) padding: rhythm(1) section#content @include span-columns(9) aside#adpack @include span-columns(3) @include omega() nav#primary, nav#social ol list-style-type: none li display: inline-block