jQuery UI Resizable - Visual feedback : UI Resizable « jQuery « JavaScript Tutorial

  jQuery UI Effects Blind 1.7.2
  Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
  Dual licensed under the MIT (MIT-LICENSE.txt)
  and GPL (GPL-LICENSE.txt) licenses.
<!doctype html>
<html lang="en">
  <title>jQuery UI Resizable - Visual feedback</title>
  <link type="text/css" href="js/themes/base/ui.all.css" rel="stylesheet" />
  <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
  <script type="text/javascript" src="js/ui/ui.core.js"></script>
  <script type="text/javascript" src="js/ui/ui.resizable.js"></script>
  <link type="text/css" href="js/demos.css" rel="stylesheet" />
  <style type="text/css">
  #resizable { width: 150px; height: 150px; padding: 0.5em; }
  #resizable h3 { text-align: center; margin: 0; }
  .ui-resizable-ghost { border: 1px dotted gray; }
  <script type="text/javascript">
  $(function() {
      ghost: true
<div class="demo">
<div id="resizable" class="ui-widget-content">
  <h3 class="ui-widget-header">Ghost</h3>

</div><!-- End demo -->

<div class="demo-description">

<p>Instead of showing the actual element during resize, set the <code>ghost</code> option to true to show a semi-transparent part of the element.</p>

</div><!-- End demo-description -->

30.146.UI Resizable
30.146.1.jQuery UI Resizable - Animate
30.146.2.jQuery UI Resizable - Preserve aspect ratio
30.146.3.jQuery UI Resizable - Constrain resize area
30.146.4.jQuery UI Resizable - Default functionality
30.146.5.jQuery UI Resizable - Delay start
30.146.6.jQuery UI Resizable - Maximum / minimum size
30.146.7.jQuery UI Resizable - Snap to grid
30.146.8.jQuery UI Resizable - Synchronous resize
30.146.9.jQuery UI Resizable - Visual feedback
30.146.10.Set max Width, max Height, min width and min height
30.146.11.ghost your resizable
30.146.12.containment: ".container", aspectRatio: true
30.146.13.Animated resizable
30.146.14.Get resized height and width