Similar to XHTML
XML署名
XML SignatureXML変換言語
XML transformation language
XUL
XUL
WiX
WiXText Encoding Initiative
Text Encoding InitiativeNewsML
NewsML
プロパティリスト
Property list
W3C勧告
Extensible Stylesheet Language
XSLInternationalization Tag Set
Internationalization Tag Set
W3C Markup Validation Service
W3C Markup Validation Service
Template:W3C標準
Template:W3C standards
Web Accessibility Initiative
Web Accessibility InitiativeWeb Open Font Format
Web Open Font Format
WebAssembly
WebAssemblyWebAuthn
WebAuthnXLink
XLinkXML Information Set
XML Path Language
XPath
XML基底
XML Base
XML情報集合
XPath
XPointer
XPointerXQuery
XQueryXSL
ウェブストレージ
Web storage
SPARQL
SPARQL
Handheld Device Markup Language
Handheld Device Markup Language