XHTML Mobile Profile and CSS Reference: XHTML-MP Markup Rules

XHTML-MP Markup Rules

XHTML-MP is based on XHTML and uses the same markup rules.

XHTML elements consist of a start tag (which includes the element name and element attributes), element content, and an end tag arranged as follows:

<element attribute="value">element content</element>

Not all elements have attributes or content.

The following rules apply to XHTML and XHTML-MP documents:

XHTML documents must be well formed. Because XHTML is based on XML, documents must conform to XML syntax rules.
XHTML elements must be properly nested.
Tags and attributes must be lowercase.
All XHTML elements must be closed. You can use a closing slash with any empty element such as <br/> or <a id="page1"/>.
All attribute values must be enclosed in quotation marks.
A DOCTYPE declaration is required. All examples in this book include this declaration. See DOCTYPE Declaration for more information.