XOXO is also a symbol for Hugs and Kisses and Love and Kisses .
For the OLPC notebook see XO-2

XOXO (eXtensible Open XHTML Outlines) is an XML microformat for outlines built on top of XHTML. Developed by several authors as an attempt to reuse XHTML building blocks instead of inventing unnecessary new XML elements/attributes, XOXO is based on existing conventions for publishing outlines, lists, and blogrolls on the Web.

The XOXO specification defines an outline as a hierarchical, ordered list of arbitrary elements. The specification is fairly open which makes it suitable for many types of list data. E.g. the more semantic version of the S5 presentation file format is based upon XOXO.

XML formatEdit

The XML elements in an XOXO document are:

<ol class="xoxo"> and <ul class="xoxo"> 
The ordered list and unordered list are the root elements of XOXO. They may contain the class attribute with the value "xoxo". They are also used as containers for outline items. They may have the attribute compact="compact" to indicate state of whether child items are visible or not.
Represents an item in the outline. May contain an ordered list or unordered list element to contain child items which themselves may do so as well.
Represents a hyperlink for an item in the outline. May have a "title" attribute to indicate additional information, a "type" attribute to indicate the MIME type of the resource at the destination of the href, a "rel" attribute to indicate the relationship of the resource at the href to this outline (e.g. using XFN), and/or a "rev" attribute to indicate the relationship of this outline to the resource at the href (e.g. using VoteLinks).
May contain any number of arbitrary properties using <dt> (definition term) and <dd> (definition) elements.

Example XOXO usesEdit

See alsoEdit

External linksEdit

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