outline
$bb-outline-width-values: ( '0': 0, '1': 1px, '2': 2px, '3': 3px);
$bb-outline-width-config: ( 'name': 'otl', 'prop': 'outline-width', 'bps': $bb-bps, 'pseudo': $bb-pseudo, 'values': $bb-outline-width-values);