collapse

// Add Shortcode
function collapse_shortcode( $atts , $content = null ) {

	// Attributes
	$atts = shortcode_atts(
		array(
			'collapse_name' => '',
		),
		$atts,
		'collapse'
	);

	// Return image HTML code
	return '<img src="' . $content . '" width="' . $atts['width'] . '" height="' . $atts['height'] . '">';

}
add_shortcode( 'collapse', 'collapse_shortcode' );