Mu.edu.tr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.
Element “nav” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “x-webkit-speech” not allowed on element “input” at this point.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
A slash was not immediately followed by “>”.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Stray end tag “span”.
Stray end tag “a”.
Warnings:
Attribute “_blank'” is not serializable as XML 1.0.
Attribute “_parent'” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Turkish. Consider adding “lang="tr"” (or variant) to the “html” start tag.
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