docs: function expandedRules( style ) {
  		var sides = [ 'top', 'left', 'right', 'bottom' ], components;
  
  		if ( style == 'border' )
  				components = [ 'color', 'style', 'width' ];
  
  		var styles = [];
  		for ( var i = 0 ; i < sides.length ; i++ ) {
  
  			if ( components ) {
  				for ( var j = 0 ; j < components.length ; j++ )
  					styles.push( [ style, sides[ i ], components[ j ] ].join( '-' ) );
  			} else {
  				styles.push( [ style, sides[ i ] ].join( '-' ) );
  			}
  		}
  
  		return styles;
  	}