The section element is a container for nestable sections. The level of sections is automatically determined by the nested level of the section element.

Example:

  ... section ....
  

  ... subsection ....
    

      ... subsubsection ....
    
  

Like previous versions of XHTML, an a element specifies a link to an another resource, but uses simple XLink. The xlink:href attribute specifies a URI reference to another resource. The prefix xlink is just an example, and may be altered by other string. In the experimental DTD, the parameter entity %XLINK.prefix; specifies the prefix for XLink, and the string xlink is used by default, but it may be altered in the internal subset like the following:

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The above parameter entity will override the default prefix xlink, and XLink attributes may be written like x:href. For brevity, the prefix xlink is used throughout this document. Note that XLink attributes are global attributes, and they must always be prefixed.

There are two possible values for the xlink:show attribute:

• xlink:show="replace" will load the linked resource in the same window, frame, pane, or other relevant presentation context in which the starting resource was loaded.
• xlink:show="new" will load the linked resource in a new window, frame, pane, or other relevant presentation context.

The default value for the xlink:show attribute is replace.

In DTD implementation, the common simple XLink attributes are defined in the XHTML XLink Module as follows:

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In addition to the a element, blockquote, quote, ins and del elements also use simple XLink to designate a source document or message, which was done by the cite attribute in previous versions of XHTML.

The blockquote element designates block-level quoted text, just like the q element for short quotations.

The xlink:href attribute may be used to designate a source document or message. This attribute is intended to give information about the source from which the quotation was borrowed, just like the cite attribute found in the previous version of the blockquote element.

Example:

Note: Legacy links are replaced with XLink.

<blockquote xlink:href="http://www.w3.org/TR/xlink/#status">
<p xml:base="http://www.w3.org/TR/xlink/">See <a xlink:href="./#xldp">[XLDP]</a>
for additional background on the design principles informing XLink,
and <a xlink:href="./#xlreq">[XLREQ]</a> for the normative XLink
requirements that this document attempts to satisfy.
XLink does not support all HTML linking constructs as they stand;
see <a xlink:href="./#xlink-naming">[XLinkNaming]</a> for a discussion
of this situation.</p>
</blockquote>

The above example might be rendered as follows:

See [XLDP] for additional background on the design principles informing XLink, and [XLREQ] for the normative XLink requirements that this document attempts to satisfy. XLink does not support all HTML linking constructs as they stand; see [XLinkNaming] for a discussion of this situation.

ins and del are used to markup sections of the document that have been inserted or deleted with respect to a different version of a document (e.g., in draft legislation where lawmakers need to view the changes).

Example:

A Sheriff can employ 35 deputies.
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The citexlink:href attribute may be used to designate a source document or message. This attribute is intended to point to information explaining why a document was changed, just like the cite attribute found in the previous version of the Edit Module (see also an issue about nesting).

In previous versions of XHTML, certain elements were not allowed within the pre element. In XHTML 2.0, pre is just like a p, the only difference is white space preservation (the xml:space attribute is fixed to preserve).