Errors:
Bad value “gr” for attribute “lang” on element “meta”: The language subtag “gr” is not a valid ISO language part of a language tag.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “font” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “figure” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Saw a “form” start tag, but there was already an active “form” element. Nested forms are not allowed. Ignoring the tag.
End tag “div” seen, but there were open elements.
Unclosed element “form”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
End tag “br”.
End tag “aside” seen, but there were open elements.
Unclosed element “div”.
Element “o:p” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Element name “o:p” cannot be represented as XML 1.0.
This document appears to be written in Greek. Consider adding “lang="el"” (or variant) to the “html” start tag.
Greece GR