Untitled

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<style>
#resizable {
  width: 400px;
  height: 200px;
  background-color: white;
  margin: 0px;
  padding: 0px;
}

#container {
  background-color: gray;
  width: 600px;
  height: 500px;
}

#outsideContainer {
  margin: 0 auto;
  width: 600px;
  height: 500px;
}
</style>
<script>
$(function() {
  $( "#resizable" ).resizable({
    containment: $('#container')
  });

  $( "#resizable" ).draggable({
    containment: $('#container')
  });
});

</script>
</head>
<body>
  <div id="outsideContainer">
  <div id="container">
    <div id="resizable" class="ui-widget-content">
    </div>
  </div>
  </div>
</body>
</html>