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.
Attribute “about” not allowed on element “meta” at this point.
Element “img” is missing required attribute “src”.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
The element “input” must not appear as a descendant of the “button” element.
Attribute “about” not allowed on element “section” at this point.
Attribute “about” not allowed on element “div” at this point.
Bad value “(min-width: 641px) 328px, 100wv” for attribute “sizes” on element “img”: Expected units (one of “em”, “ex”, “ch”, “rem”, “vw”, “vh”, “vmin”, “vmax”, “cm”, “mm”, “q”, “in”, “pc”, “pt”, “px”) but found “wv” at “…idth: 641px) 328px, 100wv”.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Bad value “0” for attribute “size” on element “input”: Zero is not a positive integer.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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