Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “card-showcase-ef8c6702-7be5-11e9-adae-ab2768d309e1” was here.
The first occurrence of ID “card-showcase-6029f1a4-7737-11e9-8870-ab0c1581a4ae” was here.
The first occurrence of ID “card-showcase-5691025e-7683-11e9-871b-b7cd0c3087d6” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Attribute “"” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
CSS: “background-color”: Parse Error.
CSS: “background-color”: “fff” is not a “background-color” value.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “width” on element “video”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “video”: The empty string is not a valid non-negative integer.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “article” seen, but there were open elements.
Unclosed element “div”.
Duplicate ID “card-showcase-ef8c6702-7be5-11e9-adae-ab2768d309e1”.
Duplicate ID “card-showcase-6029f1a4-7737-11e9-8870-ab0c1581a4ae”.
Duplicate ID “card-showcase-5691025e-7683-11e9-871b-b7cd0c3087d6”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
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