Readmng.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “tooltip” for attribute “rel” on element “a”: The string “tooltip” is not a registered keyword.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
The “center” element is obsolete. Use CSS instead.
Attribute “border” not allowed on element “input” at this point.
Attribute “rel” not allowed on element “span” at this point.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in English but the “html” start tag has “lang="TR"”. Consider using “lang="en"” (or variant) instead.
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