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    <h3>Editing: effect-fold.js</h3>
    <textarea name="content" rows="20" cols="80">/*!
 * jQuery UI Effects Fold 1.13.3
 * https://jqueryui.com
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license.
 * https://jquery.org/license
 */

//&gt;&gt;label: Fold Effect
//&gt;&gt;group: Effects
//&gt;&gt;description: Folds an element first horizontally and then vertically.
//&gt;&gt;docs: https://api.jqueryui.com/fold-effect/
//&gt;&gt;demos: https://jqueryui.com/effect/

( function( factory ) {
	&quot;use strict&quot;;

	if ( typeof define === &quot;function&quot; &amp;&amp; define.amd ) {

		// AMD. Register as an anonymous module.
		define( [
			&quot;jquery&quot;,
			&quot;../version&quot;,
			&quot;../effect&quot;
		], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} )( function( $ ) {
&quot;use strict&quot;;

return $.effects.define( &quot;fold&quot;, &quot;hide&quot;, function( options, done ) {

	// Create element
	var element = $( this ),
		mode = options.mode,
		show = mode === &quot;show&quot;,
		hide = mode === &quot;hide&quot;,
		size = options.size || 15,
		percent = /([0-9]+)%/.exec( size ),
		horizFirst = !!options.horizFirst,
		ref = horizFirst ? [ &quot;right&quot;, &quot;bottom&quot; ] : [ &quot;bottom&quot;, &quot;right&quot; ],
		duration = options.duration / 2,

		placeholder = $.effects.createPlaceholder( element ),

		start = element.cssClip(),
		animation1 = { clip: $.extend( {}, start ) },
		animation2 = { clip: $.extend( {}, start ) },

		distance = [ start[ ref[ 0 ] ], start[ ref[ 1 ] ] ],

		queuelen = element.queue().length;

	if ( percent ) {
		size = parseInt( percent[ 1 ], 10 ) / 100 * distance[ hide ? 0 : 1 ];
	}
	animation1.clip[ ref[ 0 ] ] = size;
	animation2.clip[ ref[ 0 ] ] = size;
	animation2.clip[ ref[ 1 ] ] = 0;

	if ( show ) {
		element.cssClip( animation2.clip );
		if ( placeholder ) {
			placeholder.css( $.effects.clipToBox( animation2 ) );
		}

		animation2.clip = start;
	}

	// Animate
	element
		.queue( function( next ) {
			if ( placeholder ) {
				placeholder
					.animate( $.effects.clipToBox( animation1 ), duration, options.easing )
					.animate( $.effects.clipToBox( animation2 ), duration, options.easing );
			}

			next();
		} )
		.animate( animation1, duration, options.easing )
		.animate( animation2, duration, options.easing )
		.queue( done );

	$.effects.unshift( element, queuelen, 4 );
} );

} );
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