Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Bad value “shorturl” for attribute “rel” on element “link”: The string “shorturl” is not a registered keyword.
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
End tag “article” seen, but there were open elements.
Unclosed element “div”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “nachogroup” for attribute “rel” on element “a”: The string “nachogroup” is not a registered keyword.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
Bad value “nachogroup8133178” for attribute “rel” on element “a”: The string “nachogroup8133178” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
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