Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “lang_sel”.
Duplicate attribute “class”.
Attribute “height” not allowed on element “div” at this point.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Duplicate ID “Layer_1”.
Stray end tag “div”.
Attribute “alt” not allowed on element “div” at this point.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “lang_sel” was here.
The “main” role is unnecessary for element “main”.
Unsupported SVG version specified. This validator only supports SVG 1.1. The recommended way to suppress this warning is to remove the “version” attribute altogether.
The first occurrence of ID “Layer_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Slovenian. Consider adding “lang="sl"” (or variant) to the “html” start tag.
Serbia RS