Generating XHTML Output
1. Refer to the HTML tab of the Stylesheet Properties dialog box.
2. For any of your HTML outputs, check the box in the Generate XHTML field.
3. Publish your document to the required HTML output as usual.
Your document has been output in XHTML format. It includes the required XML declaration and is based on the relevant XHTML DTD.
If you are generating output for EPUB, it will always be provided in XHTML format. The Generate XHTML field will not be available.