in reply to Re^2: For valid HTML
in thread For valid HTML

Actually, <BR/> would be the start of a SHORTTAG construct (ending with the next slash). It's not supported by most mainstream browser, but it's a valid SGML construct, and the HTML DTD doesn't prohibit it (unfortunally). See SGML features with limited support.

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Re^4: For valid HTML
by ikegami (Patriarch) on Apr 05, 2010 at 22:13 UTC

    Actually, <BR/> would be the start of a SHORTTAG construct (ending with the next slash).

    "Actually"? Not only do I know that, I covered that case. ("Browsers don't support the correct use.")

    but it's a valid SGML construct, and the HTML DTD doesn't prohibit it (unfortunally)

    Not quite. BR can't have a body. <BR// might be valid HTML, but <BR/<.../ is not.