Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “Shape” was here.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “filter-1” was here.
The first occurrence of ID “Pin” was here.
The first occurrence of ID “selected” was here.
Attribute with the local name “xmlns:sketch” is not serializable as XML 1.0.
Attribute “sketch:type” is not serializable as XML 1.0.
The first occurrence of ID “lang” was here.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate ID “Shape”.
End tag “button” did not match the name of the current open element (“svg”).
End tag “button” seen, but there were open elements.
Unclosed element “svg”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “filter-1”.
Duplicate ID “Pin”.
Duplicate ID “selected”.
Attribute “xmlns:sketch” not allowed here.
Attribute “sketch:type” not allowed on element “g” at this point.
Attribute “sketch:type” not allowed on element “path” at this point.
Duplicate ID “lang”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “itemprop” attribute was specified, but the element is not a property of any item.
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