HTTP/2 200 date: Wed, 08 Oct 2025 05:24:58 GMT content-type: application/xml content-length: 2817 cf-ray: 98b33703c881a403-BLR last-modified: Tue, 24 Nov 2015 13:09:55 GMT etag: "5666-525490ed16ec0-gzip" cache-control: max-age=7776000 expires: Tue, 06 Jan 2026 05:24:58 GMT vary: Accept-Encoding content-encoding: gzip x-backend: www-mirrors x-request-id: 98b33703c881a403 strict-transport-security: max-age=15552000; includeSubdomains; preload content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests cf-cache-status: EXPIRED accept-ranges: bytes set-cookie: __cf_bm=v6JlgxfewK1AmDzQ3LqHG5_ATjH6gKAu07fXKLZD1vw-1759901098-1.0.1.1-PkUfQ9Yn83jQufctqshZKbJkoH7UTKRqs_eoRIN9..av6dG5DH_0SrRjCyCnrnAMJqNblYjSiyNKKlzYIllP1_mQR4Mcti2simfjeGoK8c0; path=/; expires=Wed, 08-Oct-25 05:54:58 GMT; domain=.w3.org; HttpOnly; Secure; SameSite=None server: cloudflare alt-svc: h3=":443"; ma=86400 This is the XML Schema module of common content models for XHTML11 $Id: xhtml-rdfa-model-2.xsd,v 1.4 2015/11/24 13:09:55 smccarro Exp $ XHTML Document Model This module describes the groupings of elements/attributes that make up common content models for XHTML elements. XHTML has following basic content models: xhtml.Inline.mix; character-level elements xhtml.Block.mix; block-like elements, e.g., paragraphs and lists xhtml.Flow.mix; any block or inline elements xhtml.HeadOpts.mix; Head Elements xhtml.InlinePre.mix; Special class for pre content model xhtml.InlineNoAnchor.mix; Content model for Anchor Any groups declared in this module may be used to create element content models, but the above are considered 'global' (insofar as that term applies here). XHTML has the following Attribute Groups xhtml.Core.extra.attrib xhtml.I18n.extra.attrib xhtml.Common.extra The above attribute Groups are considered Global XHTML Metainformation Modules Attributes defined here: XHTML RDFa attribtues Extended I18n attribute "dir" Attribute from Bi Directional Text (bdo) Module Extended Common Attributes "style" attribute from Inline Style Module Attributes from Events Module Attributes from Metainformation Module Extend Core Attributes Extended Global Core Attributes Extended Global I18n attributes Extended Global Common Attributes