Build custom web-framework (like 960) with Sass (Scss):
$width: 960px; $gutter: 20px; $columns: 12; $column_width: $width / $columns; body { min-width: $width; } .container { margin-left: auto; margin-right: auto; width: $width; } .grid { display: inline; float: left; margin-left: $gutter / 2; margin-right: $gutter / 2; } @for $i from 1 through $columns { // 'to' (without last item) or 'through' (with last item) .grid_#{$i} { @extend .grid; width: $i * $column_width - $gutter; } }