WP spacer shortcode

// spacer shortcode
// [spacer height="50"]
function spacer_func( $atts ) {
    extract (shortcode_atts( array(
        'height' => '',
    ), $atts ));
    
	$height = ($height) ? ' '.$height : '';

    return '<div class="spacer cf" style="height:'. $height .'px"></div>';
}
add_shortcode( 'spacer', 'spacer_func' );