Errors:
Legacy doctype. Expected “<!DOCTYPE html>”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “https://www.facebook.com/sharer/sharer.php?s=100&p[url]=http://www.noesis.edu.gr/” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Element “fb:like” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Attribute “count-layout” not allowed on element “a” at this point.
Attribute “alt” not allowed on element “a” at this point.
Bad value “ px” for attribute “width” on element “img”: Expected a digit but saw “ ” instead.
Bad value “ px” for attribute “height” on element “img”: Expected a digit but saw “ ” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “166px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “232px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “430px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “https://www.google.com/maps/embed/v1/place?key=AIzaSyBW4o50tob8ZtGjQs1ONBH5uHoTnWZD2y8
&q=40.56431+22.99586” for attribute “src” on element “iframe”: Tab, new line or carriage return found.
Bad value “280px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “280px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “300px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Element name “fb:like” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
This document appears to be written in Greek. Consider adding “lang="el"” (or variant) to the “html” start tag.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Greece GR