Validating HTML5 Documents Online

Q

How To Validate HTML5 Documents Online?

✍: FYIcenter.com

A

If you have just finished a new HTML5 document, and you want to make sure that confirms with the HTML5 specification, you can use the HTML online validator at http://validator.w3.org/.

There are 3 ways you can use this validator:

By URL - Specify the URL where your XHTML document is located, and click "Check".
By File Upload - Use the "Browse" to locate an XHTML document on your local hard disk, and click "Check".
By Direct Input - Copy & paste the content of an XHTML document to the input area, and click "Check".

The validator will return a page with validation result.

Note that this validator does not support XHTML5 documents.

⇒ Top Level Structure of XHTML5 Documents

⇐ Smallest Valid HTML5 Document

⇑ Introduction of HTML5

⇑⇑ HTML Tutorials

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Smallest Valid XHTML5 Document
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Validating XHTML5 Documents Online
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What Is XHTML 1.0?
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Introduction of XHTML 1.0
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Number of Elements Defined in HTML5?
How Many Elements Are Defined in HTML5? There are 105 elements defined in HTML5: The root element: html Document metadata elements: head, title, base, link, meta, style Section elements: body, article, section, nav, aside, h1, h2, h3, h4, h5, h6, header, footer, address Grouping elements: p, hr, pre... 2024-03-07, ∼1776🔥, 0💬

Smallest Valid HTML5 Document
What is a Smallest Valid HTML5 Document? If you are interested to see the smallest, but valid, HTML5 document, look at this one: <!DOCTYPE html> <html><he ad><title&gt ;Hello</title>&a mp;lt;/head><bod y><foot... 2024-03-07, ∼1702🔥, 0💬

What Is HTML5?
What Is HTML5? HTML5 is the fifth version of the HTML standard. HTML5 was published as a W3C Recommendation on October 28, 2014. HMTL5 is a major redesign of the HTML standard to merge HTML 4, XHTML 1 and DOM Level 2 HTML into a single standard. Main features of HTML5 are: Added new markup elements:... 2024-03-07, ∼1694🔥, 0💬

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Top Level Structure of XHTML5 Documents
What is the Top Level Structure of an XHTML5 Document? An XHTML5 document is the XML serialization format of an HTML5 document. The top level structure of an XHTML5 document consists of three parts: XML processing instruction - Provides XML version information and character set declaration. Document... 2024-03-17, ∼1483🔥, 0💬

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