col

// Add Shortcode
function col_1_3_shortcode( $atts ) {

	// Attributes
	extract( shortcode_atts(
		array(
			'xs' => '4',
			'sm' => '6',
			'md' => '12',
		), $atts )
	);

	// Code
return '
<div class="col-xs-"'.$xs .'"></div>';


}
add_shortcode( '33 % | 33% | 33%', 'col_1_3_shortcode' );