Using the framework classes
Along with using the framework while we're implementing official jQuery UI widgets, we can also use it when we're deploying our own custom plugins.
Working with containers
Containers are recommended because it means that widgets or plugins that we write will be ThemeRoller-ready and easier for end-developers to theme and customize. Let's look at how easy it is to use the framework with our own elements.
In your text editor, create a new file and add the following code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Framework - Containers</title>
<link rel="stylesheet"
href="development-bundle/themes/base/jquery.ui.all.css">
</head>
<body>
<div class="ui-widget">
<div class="ui-widget-header ui-corner-top">
<h2>This is a .ui-widget-header container</h2>
</div>
<div class="ui-widget-content ui-corner-bottom">
<p>This is...
