How to use the flip extension? I install the extension under Mac OSX, Dreamweaver CS5, and couldn't find it in "insert" menu item(Other extention such as HTML Flip Gallery was there). Thanks.

Hello Charles and welcome to DMXZone support forum.

Please take a look at the following video tutorial:
Features Overview of Universal CSS Transforms: Flip

Regards: Vulcho.

Thanks and could you please give us an example for use "HTML element"(such as <div id="abc"><span>hello</span></div> other than image? I tried but failed for that.

Hello Charles,

An html element can be any selector with an id or class.
For example #abc or .abc