Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “ImageResize” for attribute “http-equiv” on element “meta”.
Bad value “ImageToolbar” for attribute “http-equiv” on element “meta”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “55px;” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
No “li” element in scope but a “li” end tag seen.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “viimased” for attribute “rel” on element “a”: The string “viimased” is not a registered keyword.
Bad value “video-gallery” for attribute “rel” on element “a”: The string “video-gallery” is not a registered keyword.
Bad value “image-gallery” for attribute “rel” on element “a”: The string “image-gallery” is not a registered keyword.
Bad value “mailto:ttu at ttu dot ee” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
No “p” element in scope but a “p” end tag seen.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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