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- Declaring language in HTML - World Wide Web Consortium (W3C)
When serving XHTML 1 x or polyglot pages as text html, use both the lang attribute and the xml:lang attribute together every time you want to set the language The xml:lang attribute is the standard way to identify language information in XML
- What is the lang attribute of the tag used for? - Stack Overflow
lang needed for text rendering Perhaps surprisingly, the benefits of the lang attribute are not limited to disabled people using speech-synthesizing assistive tech Setting lang can also affect text rendering, since the correct way to render some text can be language-dependent
- Quais são as diferenças entre os valores pt e pt-BR do atributo lang?
Agora falando apenas de HTML, o atributo lang independente do seu valor, pt ou pt-BR não muda em nada, a ideia do uso dele é normatizar e indicar os tipos de dados pra quem tiver interesse, se não houver esse atributo plugins, google tradutor ou buscadores irão ter dificuldades em detectar o idioma do texto apresentado
- HTML page has lang attribute | ACT Rule | WAI | W3C
HTML page lang attribute has valid language tag; HTML page language subtag matches default language; Bibliography Understanding Success Criterion 3 1 1: Language of Page; H57: Using language attributes on the html element; RFC 5646: Tags for Identifying Languages; The lang and xml:lang attributes; Accessibility Requirements Mapping 3 1 1
- Language tags in HTML and XML - World Wide Web Consortium (W3C)
XHTML 1 0 uses language tags in the HTML lang attribute and the XML xml:lang attribute, as well as the hreflang attribute HTTP uses language tags in the Accept-Language and Content-Language headers SMIL and SVG can use language tags in the switch statement CSS and XSL use language tags for detailed style control
- HTML中的语言信息（教程） - World Wide Web Consortium (W3C)
使用CSS中的:lang伪类来应用取决于内容语言的样式。 为什么要声明语言？ 本教程的这部分说明了阅读其余部分的原因。如果你很急，只想知道该怎么做，不需要相关理论知识，请从如何声明页面或元素的语言部分开始阅读。
- 使用语言属性设置样式 - World Wide Web Consortium (W3C)
使用 :lang 使用:lang很简单。如果文档被解析为HTML，则:lang选择器会匹配使用lang属性定义语言的内容。如果文档被解析为XML，则 :lang选择器将匹配带有xml:lang属性的内容，并忽略lang属性。 使用attr=和attr|= 使用这些选择器需要考虑一些其他因素。
- What is a NullPointerException? - Stack Overflow
in thread "main" java lang NullPointerException: Cannot invoke "java util List size()" because "list" is null List of situations that cause a NullPointerException to occur Here are all the situations in which a NullPointerException occurs, that are directly* mentioned by the Java Language Specification:
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