HTML end tag issue and w3c standard
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According to the principles of W3C, each start tag of XML must have a corresponding end tag, that is, <html> must end with </html> to be a complete element, unless it is a self-closed tag, which is a tag such as <img src="... " />. HTML is a child of XML, so it must also follow the principles of XML. This is the standard. Therefore, if <meta charset=UTF-8> is not ended with />, it does not meet the standard and is only suitable for versions before HTML 4.0. Currently, most websites use the XHTML standard writing method for SEO and multi-browser support. |
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