Comparison of HTML 5 and XHTML 1.0 Transitional

HTML is represented by SGML and XHTML is represented by XML. Creating XHTML involves more restrictions in the form of markup.

Avoid using the

Convert from HTML to XHTML

• Add XHTML to the first line of each page
• Add the xmlns attribute to the HTML of each page Element
• Change all element names to lowercase
• Close all empty elements
• Change all attribute names to lowercase
• Quote all attribute values

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