Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.
Bad value “nope!” for attribute “media” on element “link”: Expected a letter or whitespace 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 “” for attribute “aria-haspopup” on element “a”.
An element with the attribute “tabindex” must not appear as a descendant of the “a” element.
End tag “h5” seen, but there were open elements.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “data:image/svg+xml;utf8,<svg%20xmlns='http://www.w3.org/2000/svg'%20width='600'%20height='600'></svg>” for attribute “srcset” on element “img”: Bad image-candidate URL: “data:image/svg+xml;utf8,<…00'%20height='600'></svg>”: Illegal character in scheme data: “<” is not allowed.
Bad value “data:image/svg+xml;utf8,<svg%20xmlns='http://www.w3.org/2000/svg'%20width='480'%20height='640'></svg>” for attribute “srcset” on element “img”: Bad image-candidate URL: “data:image/svg+xml;utf8,<…80'%20height='640'></svg>”: Illegal character in scheme data: “<” is not allowed.
CSS: “color”: Parse Error.
Stray end tag “figure”.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
Bad value “data:image/svg+xml;utf8,<svg%20xmlns='http://www.w3.org/2000/svg'%20width='1400'%20height='700'></svg>” for attribute “srcset” on element “img”: Bad image-candidate URL: “data:image/svg+xml;utf8,<…00'%20height='700'></svg>”: Illegal character in scheme data: “<” is not allowed.
Attribute “href” not allowed on element “span” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “data:image/svg+xml;utf8,<svg%20xmlns='http://www.w3.org/2000/svg'%20width='800'%20height='800'></svg>” for attribute “srcset” on element “img”: Bad image-candidate URL: “data:image/svg+xml;utf8,<…00'%20height='800'></svg>”: Illegal character in scheme data: “<” is not allowed.
Bad value “data:image/svg+xml;utf8,<svg%20xmlns='http://www.w3.org/2000/svg'%20width='900'%20height='1200'></svg>” for attribute “srcset” on element “img”: Bad image-candidate URL: “data:image/svg+xml;utf8,<…0'%20height='1200'></svg>”: Illegal character in scheme data: “<” is not allowed.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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).
Potentially bad value “allow-scripts allow-same-origin allow-presentation” for attribute “sandbox” on element “iframe”: Setting both “allow-scripts” and “allow-same-origin” is not recommended, because it effectively enables an embedded page to break out of all sandboxing.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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