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Instead of using the
isolang attribute to define the language of the document, you can use
lang with an ISO 639-1 two character code.
For example, for Portuguese:
Related W3C validator issues
Always use a language attribute on the
<html> tag to declare the default language of the text in the page, using the
A stray start tag
<html> has been found in the document. As this tag defines the start of the whole HTML document, it should appear only once.
In HTML5, there’s no need to specify the
version attribute - it is now obsolete. Here’s an example minimal HTML document to start with:
<!DOCTYPE html> <html lang="en"> <head> <title>Test</title> </head> <body> <p></p> </body> </html>
Based on the content of the document, the W3C validator thinks that it’s written in English. Consider explicitly specifying the language using the
Based on the content of the document, the W3C validator thinks that it’s written in English, but the
lang property in the
<html> element specifies a different language. Check the language of the document, if it matches the
lang property you can safely ignore and mute this warning.
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