jQuery Mobile add the support for handling popups. The popup consists of two elements: the screen, which is a transparent or translucent element that covers the entire document, and the container, which is the popup itself. If your original element had an id attribute, the screen and the container will each receive an id attribute based on it.
To create a popup, add the data-role="popup" attribute to a div with the popup contents, place it inside data-role="page" div and make sure the latter is the direct parent of popup div. Then create a link with the href set to the id of the popup div, and add the attribute data-rel="popup" to tell the framework to open the popup when the link is tapped. This is a similar markup pattern to the dialog widget.
<a href="#popupBasic" data-rel="popup">Open Popup</a>
<div data-role="popup" id="popupBasic">
<p>This is a completely basic popup, no options set.<p>
</div>
The popup consists of two elements: the screen, which is a transparent or translucent element that covers the entire document, and the container, which is the popup itself. If your original element had an id attribute, the screen and the container will each receive an id attribute based on it. The screen's id will be suffixed with "-screen", and the container's id will be suffixed with "-popup" (in the above example, id="popupBasic-screen" and id="popupBasic-popup", respectively).
The framework adds a small amount of margin to text elements, but it's really just a container with rounded corners and a shadow which serves as a blank slate for your designs.
For more details and examples, check official demo page and go through Popup widget API thoroughly.
