Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
Attribute “xmlns” is not serializable as XML 1.0.
Attribute “xmlns:xlink” with a value other than “http://www.w3.org/1999/xlink” is not serializable as XML 1.0 without changing document semantics.
Errors:
Bad value “true” for attribute “async” on element “script”.
A “source” element that has a following sibling “source” element or “img” element with a “srcset” attribute must have a “media” attribute and/or “type” attribute.
Bad value “https://www.w3.org/2000/svg” for the attribute “xmlns” (only “http://www.w3.org/2000/svg” permitted here).
Bad value “https://www.w3.org/1999/xlink” for the attribute “xmlns:link” (only “http://www.w3.org/1999/xlink” permitted here).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” is missing one or more of the following attributes: “role”.
The first child “option” element of a “select” element with a “required” attribute, and without a “multiple” attribute, and without a “size” attribute whose value is greater than “1”, must have either an empty “value” attribute, or must have no text content. Consider either adding a placeholder option label, or adding a “size” attribute with a value equal to the number of “option” elements.
Attribute “pattern” is only allowed when the input type is “email”, “password”, “search”, “tel”, “text”, or “url”.
Attribute “name” not allowed on element “h3” at this point.
Element “style” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
CSS: “mobile-breakpoint”: Property “mobile-breakpoint” doesn't exist.
CSS: “active-border-color”: Property “active-border-color” doesn't exist.
Attribute “name” not allowed on element “div” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
The “aria-controls” attribute must point to an element in the same document.
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