Errors:
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.
No space between attributes.
Attribute “target” not allowed on element “img” at this point.
Attribute “label” not allowed on element “a” at this point.
Duplicate ID “social-bar”.
Duplicate ID “eni-logo”.
Attribute “xmlns:xs” not allowed here.
Stray end tag “source”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Bad value “” for attribute “name” on element “iframe”: Browsing context name must be at least one character long.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “true” for attribute “async” on element “script”.
Element “figcaption” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “footer” element.
The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Element “option” without attribute “label” must not be empty.
Attribute “type” not allowed on element “span” at this point.
Stray doctype.
Attribute “xmlns:xsl” not allowed here.
Element “xsl:stylesheet” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “xsl:stylesheet” seen, but there were open elements.
Unclosed element “xsl:include”.
Attribute “email” not allowed on element “input” at this point.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “social-bar” was here.
The first occurrence of ID “eni-logo” was here.
Attribute with the local name “xmlns:xs” is not serializable as XML 1.0.
Empty heading.
Attribute with the local name “xmlns:xsl” is not serializable as XML 1.0.
Element name “xsl:stylesheet” cannot be represented as XML 1.0.
Element name “xsl:include” cannot be represented as XML 1.0.
Element name “xsl:template” cannot be represented as XML 1.0.
Element name “xsl:if” cannot be represented as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (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).
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