Markup Validation Service
Check the markup (HTML, XHTML, …) of Web documents
Markup Validation Service
Check the markup (HTML, XHTML, …) of Web documents
Line 86,
Column 5:
NET-enabling start-tag requires SHORTTAG YES
<br />
For the current document, the validator interprets strings like
<FOO /> according to legacy rules that
break the expectations of most authors and thus cause confusing warnings
and error messages from the validator. This interpretation is triggered
by HTML 4 documents or other SGML-based HTML documents. To avoid the
messages, simply remove the "/" character in such contexts. NB: If you
expect <FOO /> to be interpreted as an
XML-compatible "self-closing" tag, then you need to use XHTML or HTML5.
This warning and related errors may also be caused by an unquoted
attribute value containing one or more "/". Example:
<a href=http://w3c.org>W3C</a>.
In such cases, the solution is to put quotation marks around the value.
Line 1529,
Column 12:
NET-enabling start-tag requires SHORTTAG YES
</div> <br />
For the current document, the validator interprets strings like
<FOO /> according to legacy rules that
break the expectations of most authors and thus cause confusing warnings
and error messages from the validator. This interpretation is triggered
by HTML 4 documents or other SGML-based HTML documents. To avoid the
messages, simply remove the "/" character in such contexts. NB: If you
expect <FOO /> to be interpreted as an
XML-compatible "self-closing" tag, then you need to use XHTML or HTML5.
This warning and related errors may also be caused by an unquoted
attribute value containing one or more "/". Example:
<a href=http://w3c.org>W3C</a>.
In such cases, the solution is to put quotation marks around the value.
Line 1626,
Column 26:
document type does not allow element "DIV" here
<div class="optimalizace">The element named above was found in a context where it is not allowed. This could mean that you have incorrectly nested elements -- such as a "style" element in the "body" section instead of inside "head" -- or two elements that overlap (which is not allowed).
One common cause for this error is the use of XHTML syntax in HTML documents. Due to HTML's rules of implicitly closed elements, this error can create cascading effects. For instance, using XHTML's "self-closing" tags for "meta" and "link" in the "head" section of a HTML document may cause the parser to infer the end of the "head" section and the beginning of the "body" section (where "link" and "meta" are not allowed; hence the reported error).
Below is the source input I used for this validation:
