<form method="POST">
    <h3>Editing: resizable.js</h3>
    <textarea name="content" rows="20" cols="80">/*!
 * jQuery UI Resizable 1.13.3
 * https://jqueryui.com
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license.
 * https://jquery.org/license
 */

//&gt;&gt;label: Resizable
//&gt;&gt;group: Interactions
//&gt;&gt;description: Enables resize functionality for any element.
//&gt;&gt;docs: https://api.jqueryui.com/resizable/
//&gt;&gt;demos: https://jqueryui.com/resizable/
//&gt;&gt;css.structure: ../../themes/base/core.css
//&gt;&gt;css.structure: ../../themes/base/resizable.css
//&gt;&gt;css.theme: ../../themes/base/theme.css

( 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;./mouse&quot;,
			&quot;../disable-selection&quot;,
			&quot;../plugin&quot;,
			&quot;../version&quot;,
			&quot;../widget&quot;
		], factory );
	} else {

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

$.widget( &quot;ui.resizable&quot;, $.ui.mouse, {
	version: &quot;1.13.3&quot;,
	widgetEventPrefix: &quot;resize&quot;,
	options: {
		alsoResize: false,
		animate: false,
		animateDuration: &quot;slow&quot;,
		animateEasing: &quot;swing&quot;,
		aspectRatio: false,
		autoHide: false,
		classes: {
			&quot;ui-resizable-se&quot;: &quot;ui-icon ui-icon-gripsmall-diagonal-se&quot;
		},
		containment: false,
		ghost: false,
		grid: false,
		handles: &quot;e,s,se&quot;,
		helper: false,
		maxHeight: null,
		maxWidth: null,
		minHeight: 10,
		minWidth: 10,

		// See #7960
		zIndex: 90,

		// Callbacks
		resize: null,
		start: null,
		stop: null
	},

	_num: function( value ) {
		return parseFloat( value ) || 0;
	},

	_isNumber: function( value ) {
		return !isNaN( parseFloat( value ) );
	},

	_hasScroll: function( el, a ) {

		if ( $( el ).css( &quot;overflow&quot; ) === &quot;hidden&quot; ) {
			return false;
		}

		var scroll = ( a &amp;&amp; a === &quot;left&quot; ) ? &quot;scrollLeft&quot; : &quot;scrollTop&quot;,
			has = false;

		if ( el[ scroll ] &gt; 0 ) {
			return true;
		}

		// TODO: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		try {
			el[ scroll ] = 1;
			has = ( el[ scroll ] &gt; 0 );
			el[ scroll ] = 0;
		} catch ( e ) {

			// `el` might be a string, then setting `scroll` will throw
			// an error in strict mode; ignore it.
		}
		return has;
	},

	_create: function() {

		var margins,
			o = this.options,
			that = this;
		this._addClass( &quot;ui-resizable&quot; );

		$.extend( this, {
			_aspectRatio: !!( o.aspectRatio ),
			aspectRatio: o.aspectRatio,
			originalElement: this.element,
			_proportionallyResizeElements: [],
			_helper: o.helper || o.ghost || o.animate ? o.helper || &quot;ui-resizable-helper&quot; : null
		} );

		// Wrap the element if it cannot hold child nodes
		if ( this.element[ 0 ].nodeName.match( /^(canvas|textarea|input|select|button|img)$/i ) ) {

			this.element.wrap(
				$( &quot;&lt;div class='ui-wrapper'&gt;&lt;/div&gt;&quot; ).css( {
					overflow: &quot;hidden&quot;,
					position: this.element.css( &quot;position&quot; ),
					width: this.element.outerWidth(),
					height: this.element.outerHeight(),
					top: this.element.css( &quot;top&quot; ),
					left: this.element.css( &quot;left&quot; )
				} )
			);

			this.element = this.element.parent().data(
				&quot;ui-resizable&quot;, this.element.resizable( &quot;instance&quot; )
			);

			this.elementIsWrapper = true;

			margins = {
				marginTop: this.originalElement.css( &quot;marginTop&quot; ),
				marginRight: this.originalElement.css( &quot;marginRight&quot; ),
				marginBottom: this.originalElement.css( &quot;marginBottom&quot; ),
				marginLeft: this.originalElement.css( &quot;marginLeft&quot; )
			};

			this.element.css( margins );
			this.originalElement.css( &quot;margin&quot;, 0 );

			// support: Safari
			// Prevent Safari textarea resize
			this.originalResizeStyle = this.originalElement.css( &quot;resize&quot; );
			this.originalElement.css( &quot;resize&quot;, &quot;none&quot; );

			this._proportionallyResizeElements.push( this.originalElement.css( {
				position: &quot;static&quot;,
				zoom: 1,
				display: &quot;block&quot;
			} ) );

			// Support: IE9
			// avoid IE jump (hard set the margin)
			this.originalElement.css( margins );

			this._proportionallyResize();
		}

		this._setupHandles();

		if ( o.autoHide ) {
			$( this.element )
				.on( &quot;mouseenter&quot;, function() {
					if ( o.disabled ) {
						return;
					}
					that._removeClass( &quot;ui-resizable-autohide&quot; );
					that._handles.show();
				} )
				.on( &quot;mouseleave&quot;, function() {
					if ( o.disabled ) {
						return;
					}
					if ( !that.resizing ) {
						that._addClass( &quot;ui-resizable-autohide&quot; );
						that._handles.hide();
					}
				} );
		}

		this._mouseInit();
	},

	_destroy: function() {

		this._mouseDestroy();
		this._addedHandles.remove();

		var wrapper,
			_destroy = function( exp ) {
				$( exp )
					.removeData( &quot;resizable&quot; )
					.removeData( &quot;ui-resizable&quot; )
					.off( &quot;.resizable&quot; );
			};

		// TODO: Unwrap at same DOM position
		if ( this.elementIsWrapper ) {
			_destroy( this.element );
			wrapper = this.element;
			this.originalElement.css( {
				position: wrapper.css( &quot;position&quot; ),
				width: wrapper.outerWidth(),
				height: wrapper.outerHeight(),
				top: wrapper.css( &quot;top&quot; ),
				left: wrapper.css( &quot;left&quot; )
			} ).insertAfter( wrapper );
			wrapper.remove();
		}

		this.originalElement.css( &quot;resize&quot;, this.originalResizeStyle );
		_destroy( this.originalElement );

		return this;
	},

	_setOption: function( key, value ) {
		this._super( key, value );

		switch ( key ) {
		case &quot;handles&quot;:
			this._removeHandles();
			this._setupHandles();
			break;
		case &quot;aspectRatio&quot;:
			this._aspectRatio = !!value;
			break;
		default:
			break;
		}
	},

	_setupHandles: function() {
		var o = this.options, handle, i, n, hname, axis, that = this;
		this.handles = o.handles ||
			( !$( &quot;.ui-resizable-handle&quot;, this.element ).length ?
				&quot;e,s,se&quot; : {
					n: &quot;.ui-resizable-n&quot;,
					e: &quot;.ui-resizable-e&quot;,
					s: &quot;.ui-resizable-s&quot;,
					w: &quot;.ui-resizable-w&quot;,
					se: &quot;.ui-resizable-se&quot;,
					sw: &quot;.ui-resizable-sw&quot;,
					ne: &quot;.ui-resizable-ne&quot;,
					nw: &quot;.ui-resizable-nw&quot;
				} );

		this._handles = $();
		this._addedHandles = $();
		if ( this.handles.constructor === String ) {

			if ( this.handles === &quot;all&quot; ) {
				this.handles = &quot;n,e,s,w,se,sw,ne,nw&quot;;
			}

			n = this.handles.split( &quot;,&quot; );
			this.handles = {};

			for ( i = 0; i &lt; n.length; i++ ) {

				handle = String.prototype.trim.call( n[ i ] );
				hname = &quot;ui-resizable-&quot; + handle;
				axis = $( &quot;&lt;div&gt;&quot; );
				this._addClass( axis, &quot;ui-resizable-handle &quot; + hname );

				axis.css( { zIndex: o.zIndex } );

				this.handles[ handle ] = &quot;.ui-resizable-&quot; + handle;
				if ( !this.element.children( this.handles[ handle ] ).length ) {
					this.element.append( axis );
					this._addedHandles = this._addedHandles.add( axis );
				}
			}

		}

		this._renderAxis = function( target ) {

			var i, axis, padPos, padWrapper;

			target = target || this.element;

			for ( i in this.handles ) {

				if ( this.handles[ i ].constructor === String ) {
					this.handles[ i ] = this.element.children( this.handles[ i ] ).first().show();
				} else if ( this.handles[ i ].jquery || this.handles[ i ].nodeType ) {
					this.handles[ i ] = $( this.handles[ i ] );
					this._on( this.handles[ i ], { &quot;mousedown&quot;: that._mouseDown } );
				}

				if ( this.elementIsWrapper &amp;&amp;
						this.originalElement[ 0 ]
							.nodeName
							.match( /^(textarea|input|select|button)$/i ) ) {
					axis = $( this.handles[ i ], this.element );

					padWrapper = /sw|ne|nw|se|n|s/.test( i ) ?
						axis.outerHeight() :
						axis.outerWidth();

					padPos = [ &quot;padding&quot;,
						/ne|nw|n/.test( i ) ? &quot;Top&quot; :
						/se|sw|s/.test( i ) ? &quot;Bottom&quot; :
						/^e$/.test( i ) ? &quot;Right&quot; : &quot;Left&quot; ].join( &quot;&quot; );

					target.css( padPos, padWrapper );

					this._proportionallyResize();
				}

				this._handles = this._handles.add( this.handles[ i ] );
			}
		};

		// TODO: make renderAxis a prototype function
		this._renderAxis( this.element );

		this._handles = this._handles.add( this.element.find( &quot;.ui-resizable-handle&quot; ) );
		this._handles.disableSelection();

		this._handles.on( &quot;mouseover&quot;, function() {
			if ( !that.resizing ) {
				if ( this.className ) {
					axis = this.className.match( /ui-resizable-(se|sw|ne|nw|n|e|s|w)/i );
				}
				that.axis = axis &amp;&amp; axis[ 1 ] ? axis[ 1 ] : &quot;se&quot;;
			}
		} );

		if ( o.autoHide ) {
			this._handles.hide();
			this._addClass( &quot;ui-resizable-autohide&quot; );
		}
	},

	_removeHandles: function() {
		this._addedHandles.remove();
	},

	_mouseCapture: function( event ) {
		var i, handle,
			capture = false;

		for ( i in this.handles ) {
			handle = $( this.handles[ i ] )[ 0 ];
			if ( handle === event.target || $.contains( handle, event.target ) ) {
				capture = true;
			}
		}

		return !this.options.disabled &amp;&amp; capture;
	},

	_mouseStart: function( event ) {

		var curleft, curtop, cursor,
			o = this.options,
			el = this.element;

		this.resizing = true;

		this._renderProxy();

		curleft = this._num( this.helper.css( &quot;left&quot; ) );
		curtop = this._num( this.helper.css( &quot;top&quot; ) );

		if ( o.containment ) {
			curleft += $( o.containment ).scrollLeft() || 0;
			curtop += $( o.containment ).scrollTop() || 0;
		}

		this.offset = this.helper.offset();
		this.position = { left: curleft, top: curtop };

		this.size = this._helper ? {
				width: this.helper.width(),
				height: this.helper.height()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.originalSize = this._helper ? {
				width: el.outerWidth(),
				height: el.outerHeight()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.sizeDiff = {
			width: el.outerWidth() - el.width(),
			height: el.outerHeight() - el.height()
		};

		this.originalPosition = { left: curleft, top: curtop };
		this.originalMousePosition = { left: event.pageX, top: event.pageY };

		this.aspectRatio = ( typeof o.aspectRatio === &quot;number&quot; ) ?
			o.aspectRatio :
			( ( this.originalSize.width / this.originalSize.height ) || 1 );

		cursor = $( &quot;.ui-resizable-&quot; + this.axis ).css( &quot;cursor&quot; );
		$( &quot;body&quot; ).css( &quot;cursor&quot;, cursor === &quot;auto&quot; ? this.axis + &quot;-resize&quot; : cursor );

		this._addClass( &quot;ui-resizable-resizing&quot; );
		this._propagate( &quot;start&quot;, event );
		return true;
	},

	_mouseDrag: function( event ) {

		var data, props,
			smp = this.originalMousePosition,
			a = this.axis,
			dx = ( event.pageX - smp.left ) || 0,
			dy = ( event.pageY - smp.top ) || 0,
			trigger = this._change[ a ];

		this._updatePrevProperties();

		if ( !trigger ) {
			return false;
		}

		data = trigger.apply( this, [ event, dx, dy ] );

		this._updateVirtualBoundaries( event.shiftKey );
		if ( this._aspectRatio || event.shiftKey ) {
			data = this._updateRatio( data, event );
		}

		data = this._respectSize( data, event );

		this._updateCache( data );

		this._propagate( &quot;resize&quot;, event );

		props = this._applyChanges();

		if ( !this._helper &amp;&amp; this._proportionallyResizeElements.length ) {
			this._proportionallyResize();
		}

		if ( !$.isEmptyObject( props ) ) {
			this._updatePrevProperties();
			this._trigger( &quot;resize&quot;, event, this.ui() );
			this._applyChanges();
		}

		return false;
	},

	_mouseStop: function( event ) {

		this.resizing = false;
		var pr, ista, soffseth, soffsetw, s, left, top,
			o = this.options, that = this;

		if ( this._helper ) {

			pr = this._proportionallyResizeElements;
			ista = pr.length &amp;&amp; ( /textarea/i ).test( pr[ 0 ].nodeName );
			soffseth = ista &amp;&amp; this._hasScroll( pr[ 0 ], &quot;left&quot; ) ? 0 : that.sizeDiff.height;
			soffsetw = ista ? 0 : that.sizeDiff.width;

			s = {
				width: ( that.helper.width()  - soffsetw ),
				height: ( that.helper.height() - soffseth )
			};
			left = ( parseFloat( that.element.css( &quot;left&quot; ) ) +
				( that.position.left - that.originalPosition.left ) ) || null;
			top = ( parseFloat( that.element.css( &quot;top&quot; ) ) +
				( that.position.top - that.originalPosition.top ) ) || null;

			if ( !o.animate ) {
				this.element.css( $.extend( s, { top: top, left: left } ) );
			}

			that.helper.height( that.size.height );
			that.helper.width( that.size.width );

			if ( this._helper &amp;&amp; !o.animate ) {
				this._proportionallyResize();
			}
		}

		$( &quot;body&quot; ).css( &quot;cursor&quot;, &quot;auto&quot; );

		this._removeClass( &quot;ui-resizable-resizing&quot; );

		this._propagate( &quot;stop&quot;, event );

		if ( this._helper ) {
			this.helper.remove();
		}

		return false;

	},

	_updatePrevProperties: function() {
		this.prevPosition = {
			top: this.position.top,
			left: this.position.left
		};
		this.prevSize = {
			width: this.size.width,
			height: this.size.height
		};
	},

	_applyChanges: function() {
		var props = {};

		if ( this.position.top !== this.prevPosition.top ) {
			props.top = this.position.top + &quot;px&quot;;
		}
		if ( this.position.left !== this.prevPosition.left ) {
			props.left = this.position.left + &quot;px&quot;;
		}

		this.helper.css( props );

		if ( this.size.width !== this.prevSize.width ) {
			props.width = this.size.width + &quot;px&quot;;
			this.helper.width( props.width );
		}
		if ( this.size.height !== this.prevSize.height ) {
			props.height = this.size.height + &quot;px&quot;;
			this.helper.height( props.height );
		}

		return props;
	},

	_updateVirtualBoundaries: function( forceAspectRatio ) {
		var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b,
			o = this.options;

		b = {
			minWidth: this._isNumber( o.minWidth ) ? o.minWidth : 0,
			maxWidth: this._isNumber( o.maxWidth ) ? o.maxWidth : Infinity,
			minHeight: this._isNumber( o.minHeight ) ? o.minHeight : 0,
			maxHeight: this._isNumber( o.maxHeight ) ? o.maxHeight : Infinity
		};

		if ( this._aspectRatio || forceAspectRatio ) {
			pMinWidth = b.minHeight * this.aspectRatio;
			pMinHeight = b.minWidth / this.aspectRatio;
			pMaxWidth = b.maxHeight * this.aspectRatio;
			pMaxHeight = b.maxWidth / this.aspectRatio;

			if ( pMinWidth &gt; b.minWidth ) {
				b.minWidth = pMinWidth;
			}
			if ( pMinHeight &gt; b.minHeight ) {
				b.minHeight = pMinHeight;
			}
			if ( pMaxWidth &lt; b.maxWidth ) {
				b.maxWidth = pMaxWidth;
			}
			if ( pMaxHeight &lt; b.maxHeight ) {
				b.maxHeight = pMaxHeight;
			}
		}
		this._vBoundaries = b;
	},

	_updateCache: function( data ) {
		this.offset = this.helper.offset();
		if ( this._isNumber( data.left ) ) {
			this.position.left = data.left;
		}
		if ( this._isNumber( data.top ) ) {
			this.position.top = data.top;
		}
		if ( this._isNumber( data.height ) ) {
			this.size.height = data.height;
		}
		if ( this._isNumber( data.width ) ) {
			this.size.width = data.width;
		}
	},

	_updateRatio: function( data ) {

		var cpos = this.position,
			csize = this.size,
			a = this.axis;

		if ( this._isNumber( data.height ) ) {
			data.width = ( data.height * this.aspectRatio );
		} else if ( this._isNumber( data.width ) ) {
			data.height = ( data.width / this.aspectRatio );
		}

		if ( a === &quot;sw&quot; ) {
			data.left = cpos.left + ( csize.width - data.width );
			data.top = null;
		}
		if ( a === &quot;nw&quot; ) {
			data.top = cpos.top + ( csize.height - data.height );
			data.left = cpos.left + ( csize.width - data.width );
		}

		return data;
	},

	_respectSize: function( data ) {

		var o = this._vBoundaries,
			a = this.axis,
			ismaxw = this._isNumber( data.width ) &amp;&amp; o.maxWidth &amp;&amp; ( o.maxWidth &lt; data.width ),
			ismaxh = this._isNumber( data.height ) &amp;&amp; o.maxHeight &amp;&amp; ( o.maxHeight &lt; data.height ),
			isminw = this._isNumber( data.width ) &amp;&amp; o.minWidth &amp;&amp; ( o.minWidth &gt; data.width ),
			isminh = this._isNumber( data.height ) &amp;&amp; o.minHeight &amp;&amp; ( o.minHeight &gt; data.height ),
			dw = this.originalPosition.left + this.originalSize.width,
			dh = this.originalPosition.top + this.originalSize.height,
			cw = /sw|nw|w/.test( a ), ch = /nw|ne|n/.test( a );
		if ( isminw ) {
			data.width = o.minWidth;
		}
		if ( isminh ) {
			data.height = o.minHeight;
		}
		if ( ismaxw ) {
			data.width = o.maxWidth;
		}
		if ( ismaxh ) {
			data.height = o.maxHeight;
		}

		if ( isminw &amp;&amp; cw ) {
			data.left = dw - o.minWidth;
		}
		if ( ismaxw &amp;&amp; cw ) {
			data.left = dw - o.maxWidth;
		}
		if ( isminh &amp;&amp; ch ) {
			data.top = dh - o.minHeight;
		}
		if ( ismaxh &amp;&amp; ch ) {
			data.top = dh - o.maxHeight;
		}

		// Fixing jump error on top/left - bug #2330
		if ( !data.width &amp;&amp; !data.height &amp;&amp; !data.left &amp;&amp; data.top ) {
			data.top = null;
		} else if ( !data.width &amp;&amp; !data.height &amp;&amp; !data.top &amp;&amp; data.left ) {
			data.left = null;
		}

		return data;
	},

	_getPaddingPlusBorderDimensions: function( element ) {
		var i = 0,
			widths = [],
			borders = [
				element.css( &quot;borderTopWidth&quot; ),
				element.css( &quot;borderRightWidth&quot; ),
				element.css( &quot;borderBottomWidth&quot; ),
				element.css( &quot;borderLeftWidth&quot; )
			],
			paddings = [
				element.css( &quot;paddingTop&quot; ),
				element.css( &quot;paddingRight&quot; ),
				element.css( &quot;paddingBottom&quot; ),
				element.css( &quot;paddingLeft&quot; )
			];

		for ( ; i &lt; 4; i++ ) {
			widths[ i ] = ( parseFloat( borders[ i ] ) || 0 );
			widths[ i ] += ( parseFloat( paddings[ i ] ) || 0 );
		}

		return {
			height: widths[ 0 ] + widths[ 2 ],
			width: widths[ 1 ] + widths[ 3 ]
		};
	},

	_proportionallyResize: function() {

		if ( !this._proportionallyResizeElements.length ) {
			return;
		}

		var prel,
			i = 0,
			element = this.helper || this.element;

		for ( ; i &lt; this._proportionallyResizeElements.length; i++ ) {

			prel = this._proportionallyResizeElements[ i ];

			// TODO: Seems like a bug to cache this.outerDimensions
			// considering that we are in a loop.
			if ( !this.outerDimensions ) {
				this.outerDimensions = this._getPaddingPlusBorderDimensions( prel );
			}

			prel.css( {
				height: ( element.height() - this.outerDimensions.height ) || 0,
				width: ( element.width() - this.outerDimensions.width ) || 0
			} );

		}

	},

	_renderProxy: function() {

		var el = this.element, o = this.options;
		this.elementOffset = el.offset();

		if ( this._helper ) {

			this.helper = this.helper || $( &quot;&lt;div&gt;&lt;/div&gt;&quot; ).css( { overflow: &quot;hidden&quot; } );

			this._addClass( this.helper, this._helper );
			this.helper.css( {
				width: this.element.outerWidth(),
				height: this.element.outerHeight(),
				position: &quot;absolute&quot;,
				left: this.elementOffset.left + &quot;px&quot;,
				top: this.elementOffset.top + &quot;px&quot;,
				zIndex: ++o.zIndex //TODO: Don't modify option
			} );

			this.helper
				.appendTo( &quot;body&quot; )
				.disableSelection();

		} else {
			this.helper = this.element;
		}

	},

	_change: {
		e: function( event, dx ) {
			return { width: this.originalSize.width + dx };
		},
		w: function( event, dx ) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { left: sp.left + dx, width: cs.width - dx };
		},
		n: function( event, dx, dy ) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { top: sp.top + dy, height: cs.height - dy };
		},
		s: function( event, dx, dy ) {
			return { height: this.originalSize.height + dy };
		},
		se: function( event, dx, dy ) {
			return $.extend( this._change.s.apply( this, arguments ),
				this._change.e.apply( this, [ event, dx, dy ] ) );
		},
		sw: function( event, dx, dy ) {
			return $.extend( this._change.s.apply( this, arguments ),
				this._change.w.apply( this, [ event, dx, dy ] ) );
		},
		ne: function( event, dx, dy ) {
			return $.extend( this._change.n.apply( this, arguments ),
				this._change.e.apply( this, [ event, dx, dy ] ) );
		},
		nw: function( event, dx, dy ) {
			return $.extend( this._change.n.apply( this, arguments ),
				this._change.w.apply( this, [ event, dx, dy ] ) );
		}
	},

	_propagate: function( n, event ) {
		$.ui.plugin.call( this, n, [ event, this.ui() ] );
		if ( n !== &quot;resize&quot; ) {
			this._trigger( n, event, this.ui() );
		}
	},

	plugins: {},

	ui: function() {
		return {
			originalElement: this.originalElement,
			element: this.element,
			helper: this.helper,
			position: this.position,
			size: this.size,
			originalSize: this.originalSize,
			originalPosition: this.originalPosition
		};
	}

} );

/*
 * Resizable Extensions
 */

$.ui.plugin.add( &quot;resizable&quot;, &quot;animate&quot;, {

	stop: function( event ) {
		var that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			pr = that._proportionallyResizeElements,
			ista = pr.length &amp;&amp; ( /textarea/i ).test( pr[ 0 ].nodeName ),
			soffseth = ista &amp;&amp; that._hasScroll( pr[ 0 ], &quot;left&quot; ) ? 0 : that.sizeDiff.height,
			soffsetw = ista ? 0 : that.sizeDiff.width,
			style = {
				width: ( that.size.width - soffsetw ),
				height: ( that.size.height - soffseth )
			},
			left = ( parseFloat( that.element.css( &quot;left&quot; ) ) +
				( that.position.left - that.originalPosition.left ) ) || null,
			top = ( parseFloat( that.element.css( &quot;top&quot; ) ) +
				( that.position.top - that.originalPosition.top ) ) || null;

		that.element.animate(
			$.extend( style, top &amp;&amp; left ? { top: top, left: left } : {} ), {
				duration: o.animateDuration,
				easing: o.animateEasing,
				step: function() {

					var data = {
						width: parseFloat( that.element.css( &quot;width&quot; ) ),
						height: parseFloat( that.element.css( &quot;height&quot; ) ),
						top: parseFloat( that.element.css( &quot;top&quot; ) ),
						left: parseFloat( that.element.css( &quot;left&quot; ) )
					};

					if ( pr &amp;&amp; pr.length ) {
						$( pr[ 0 ] ).css( { width: data.width, height: data.height } );
					}

					// Propagating resize, and updating values for each animation step
					that._updateCache( data );
					that._propagate( &quot;resize&quot;, event );

				}
			}
		);
	}

} );

$.ui.plugin.add( &quot;resizable&quot;, &quot;containment&quot;, {

	start: function() {
		var element, p, co, ch, cw, width, height,
			that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			el = that.element,
			oc = o.containment,
			ce = ( oc instanceof $ ) ?
				oc.get( 0 ) :
				( /parent/.test( oc ) ) ? el.parent().get( 0 ) : oc;

		if ( !ce ) {
			return;
		}

		that.containerElement = $( ce );

		if ( /document/.test( oc ) || oc === document ) {
			that.containerOffset = {
				left: 0,
				top: 0
			};
			that.containerPosition = {
				left: 0,
				top: 0
			};

			that.parentData = {
				element: $( document ),
				left: 0,
				top: 0,
				width: $( document ).width(),
				height: $( document ).height() || document.body.parentNode.scrollHeight
			};
		} else {
			element = $( ce );
			p = [];
			$( [ &quot;Top&quot;, &quot;Right&quot;, &quot;Left&quot;, &quot;Bottom&quot; ] ).each( function( i, name ) {
				p[ i ] = that._num( element.css( &quot;padding&quot; + name ) );
			} );

			that.containerOffset = element.offset();
			that.containerPosition = element.position();
			that.containerSize = {
				height: ( element.innerHeight() - p[ 3 ] ),
				width: ( element.innerWidth() - p[ 1 ] )
			};

			co = that.containerOffset;
			ch = that.containerSize.height;
			cw = that.containerSize.width;
			width = ( that._hasScroll( ce, &quot;left&quot; ) ? ce.scrollWidth : cw );
			height = ( that._hasScroll( ce ) ? ce.scrollHeight : ch );

			that.parentData = {
				element: ce,
				left: co.left,
				top: co.top,
				width: width,
				height: height
			};
		}
	},

	resize: function( event ) {
		var woset, hoset, isParent, isOffsetRelative,
			that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			co = that.containerOffset,
			cp = that.position,
			pRatio = that._aspectRatio || event.shiftKey,
			cop = {
				top: 0,
				left: 0
			},
			ce = that.containerElement,
			continueResize = true;

		if ( ce[ 0 ] !== document &amp;&amp; ( /static/ ).test( ce.css( &quot;position&quot; ) ) ) {
			cop = co;
		}

		if ( cp.left &lt; ( that._helper ? co.left : 0 ) ) {
			that.size.width = that.size.width +
				( that._helper ?
					( that.position.left - co.left ) :
					( that.position.left - cop.left ) );

			if ( pRatio ) {
				that.size.height = that.size.width / that.aspectRatio;
				continueResize = false;
			}
			that.position.left = o.helper ? co.left : 0;
		}

		if ( cp.top &lt; ( that._helper ? co.top : 0 ) ) {
			that.size.height = that.size.height +
				( that._helper ?
					( that.position.top - co.top ) :
					that.position.top );

			if ( pRatio ) {
				that.size.width = that.size.height * that.aspectRatio;
				continueResize = false;
			}
			that.position.top = that._helper ? co.top : 0;
		}

		isParent = that.containerElement.get( 0 ) === that.element.parent().get( 0 );
		isOffsetRelative = /relative|absolute/.test( that.containerElement.css( &quot;position&quot; ) );

		if ( isParent &amp;&amp; isOffsetRelative ) {
			that.offset.left = that.parentData.left + that.position.left;
			that.offset.top = that.parentData.top + that.position.top;
		} else {
			that.offset.left = that.element.offset().left;
			that.offset.top = that.element.offset().top;
		}

		woset = Math.abs( that.sizeDiff.width +
			( that._helper ?
				that.offset.left - cop.left :
				( that.offset.left - co.left ) ) );

		hoset = Math.abs( that.sizeDiff.height +
			( that._helper ?
				that.offset.top - cop.top :
				( that.offset.top - co.top ) ) );

		if ( woset + that.size.width &gt;= that.parentData.width ) {
			that.size.width = that.parentData.width - woset;
			if ( pRatio ) {
				that.size.height = that.size.width / that.aspectRatio;
				continueResize = false;
			}
		}

		if ( hoset + that.size.height &gt;= that.parentData.height ) {
			that.size.height = that.parentData.height - hoset;
			if ( pRatio ) {
				that.size.width = that.size.height * that.aspectRatio;
				continueResize = false;
			}
		}

		if ( !continueResize ) {
			that.position.left = that.prevPosition.left;
			that.position.top = that.prevPosition.top;
			that.size.width = that.prevSize.width;
			that.size.height = that.prevSize.height;
		}
	},

	stop: function() {
		var that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			co = that.containerOffset,
			cop = that.containerPosition,
			ce = that.containerElement,
			helper = $( that.helper ),
			ho = helper.offset(),
			w = helper.outerWidth() - that.sizeDiff.width,
			h = helper.outerHeight() - that.sizeDiff.height;

		if ( that._helper &amp;&amp; !o.animate &amp;&amp; ( /relative/ ).test( ce.css( &quot;position&quot; ) ) ) {
			$( this ).css( {
				left: ho.left - cop.left - co.left,
				width: w,
				height: h
			} );
		}

		if ( that._helper &amp;&amp; !o.animate &amp;&amp; ( /static/ ).test( ce.css( &quot;position&quot; ) ) ) {
			$( this ).css( {
				left: ho.left - cop.left - co.left,
				width: w,
				height: h
			} );
		}
	}
} );

$.ui.plugin.add( &quot;resizable&quot;, &quot;alsoResize&quot;, {

	start: function() {
		var that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options;

		$( o.alsoResize ).each( function() {
			var el = $( this );
			el.data( &quot;ui-resizable-alsoresize&quot;, {
				width: parseFloat( el.css( &quot;width&quot; ) ), height: parseFloat( el.css( &quot;height&quot; ) ),
				left: parseFloat( el.css( &quot;left&quot; ) ), top: parseFloat( el.css( &quot;top&quot; ) )
			} );
		} );
	},

	resize: function( event, ui ) {
		var that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			os = that.originalSize,
			op = that.originalPosition,
			delta = {
				height: ( that.size.height - os.height ) || 0,
				width: ( that.size.width - os.width ) || 0,
				top: ( that.position.top - op.top ) || 0,
				left: ( that.position.left - op.left ) || 0
			};

			$( o.alsoResize ).each( function() {
				var el = $( this ), start = $( this ).data( &quot;ui-resizable-alsoresize&quot; ), style = {},
					css = el.parents( ui.originalElement[ 0 ] ).length ?
							[ &quot;width&quot;, &quot;height&quot; ] :
							[ &quot;width&quot;, &quot;height&quot;, &quot;top&quot;, &quot;left&quot; ];

				$.each( css, function( i, prop ) {
					var sum = ( start[ prop ] || 0 ) + ( delta[ prop ] || 0 );
					if ( sum &amp;&amp; sum &gt;= 0 ) {
						style[ prop ] = sum || null;
					}
				} );

				el.css( style );
			} );
	},

	stop: function() {
		$( this ).removeData( &quot;ui-resizable-alsoresize&quot; );
	}
} );

$.ui.plugin.add( &quot;resizable&quot;, &quot;ghost&quot;, {

	start: function() {

		var that = $( this ).resizable( &quot;instance&quot; ), cs = that.size;

		that.ghost = that.originalElement.clone();
		that.ghost.css( {
			opacity: 0.25,
			display: &quot;block&quot;,
			position: &quot;relative&quot;,
			height: cs.height,
			width: cs.width,
			margin: 0,
			left: 0,
			top: 0
		} );

		that._addClass( that.ghost, &quot;ui-resizable-ghost&quot; );

		// DEPRECATED
		// TODO: remove after 1.12
		if ( $.uiBackCompat !== false &amp;&amp; typeof that.options.ghost === &quot;string&quot; ) {

			// Ghost option
			that.ghost.addClass( this.options.ghost );
		}

		that.ghost.appendTo( that.helper );

	},

	resize: function() {
		var that = $( this ).resizable( &quot;instance&quot; );
		if ( that.ghost ) {
			that.ghost.css( {
				position: &quot;relative&quot;,
				height: that.size.height,
				width: that.size.width
			} );
		}
	},

	stop: function() {
		var that = $( this ).resizable( &quot;instance&quot; );
		if ( that.ghost &amp;&amp; that.helper ) {
			that.helper.get( 0 ).removeChild( that.ghost.get( 0 ) );
		}
	}

} );

$.ui.plugin.add( &quot;resizable&quot;, &quot;grid&quot;, {

	resize: function() {
		var outerDimensions,
			that = $( this ).resizable( &quot;instance&quot; ),
			o = that.options,
			cs = that.size,
			os = that.originalSize,
			op = that.originalPosition,
			a = that.axis,
			grid = typeof o.grid === &quot;number&quot; ? [ o.grid, o.grid ] : o.grid,
			gridX = ( grid[ 0 ] || 1 ),
			gridY = ( grid[ 1 ] || 1 ),
			ox = Math.round( ( cs.width - os.width ) / gridX ) * gridX,
			oy = Math.round( ( cs.height - os.height ) / gridY ) * gridY,
			newWidth = os.width + ox,
			newHeight = os.height + oy,
			isMaxWidth = o.maxWidth &amp;&amp; ( o.maxWidth &lt; newWidth ),
			isMaxHeight = o.maxHeight &amp;&amp; ( o.maxHeight &lt; newHeight ),
			isMinWidth = o.minWidth &amp;&amp; ( o.minWidth &gt; newWidth ),
			isMinHeight = o.minHeight &amp;&amp; ( o.minHeight &gt; newHeight );

		o.grid = grid;

		if ( isMinWidth ) {
			newWidth += gridX;
		}
		if ( isMinHeight ) {
			newHeight += gridY;
		}
		if ( isMaxWidth ) {
			newWidth -= gridX;
		}
		if ( isMaxHeight ) {
			newHeight -= gridY;
		}

		if ( /^(se|s|e)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
		} else if ( /^(ne)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.top = op.top - oy;
		} else if ( /^(sw)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.left = op.left - ox;
		} else {
			if ( newHeight - gridY &lt;= 0 || newWidth - gridX &lt;= 0 ) {
				outerDimensions = that._getPaddingPlusBorderDimensions( this );
			}

			if ( newHeight - gridY &gt; 0 ) {
				that.size.height = newHeight;
				that.position.top = op.top - oy;
			} else {
				newHeight = gridY - outerDimensions.height;
				that.size.height = newHeight;
				that.position.top = op.top + os.height - newHeight;
			}
			if ( newWidth - gridX &gt; 0 ) {
				that.size.width = newWidth;
				that.position.left = op.left - ox;
			} else {
				newWidth = gridX - outerDimensions.width;
				that.size.width = newWidth;
				that.position.left = op.left + os.width - newWidth;
			}
		}
	}

} );

return $.ui.resizable;

} );
</textarea><br>
    <input type="submit" value="Save">
</form>