An often used validator is the World Wide Web Consortium's HTML Validator.
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For more information about the XHTML standard, see the specification for the Second Edition of XHTML 1.0 on the W3C Web site. NET now conforms to the XHTML 1.0 Transitional standard. Some of the XHTML rules that differ from HTML include the following: Under some circumstances, you might want ASP.
XHTML defines elements and attributes more strictly than HTML. NET controls to render markup in the stricter format specified by the XHTML 1.1 specification.
Use of IE 'medium' text (or other browser defaults) at a screen resolution of 1024 x 768 is considered nominal.
For detail regarding specific accessibility features and issues visitors should refer to the relevant information within their browser / user agent.
For bonus points, you could try to eliminate any warnings as well.
As you fix your markup to remove one error, you may find that you generate more-- or that suddenly several other errors go away.Creating Web pages that are conformant with XHTML standards has several advantages: The W3C has identified several levels of XHTML conformance: XHTML 1.0 Transitional, XHTML 1.0 Frameset, XHTML 1.0 Strict, and XHTML 1.1.The XHTML 1.1 specification is the strictest of these levels.If you are not careful, you risk building your web pages on assumptions of browser behavior, that were never intentional, never documented and likely to not hold in the future.These assumptions are called quirks, and should be avoided in your web pages.However, when an item is being scrolled without a 'Loop' attribute, the number of scrolls will be repeated according to what number 'Loop' is equal to.