Errors:
Attribute “size” not allowed on element “link” at this point.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Stray doctype.
Bad value “1-muito-ruim” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “2-ruim” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “3-regular” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “4-bom” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
Bad value “5-muito-bom” for attribute “id” on element “symbol”: Not a valid XML 1.0 name.
No space between attributes.
Element “title” not allowed as child of element “main” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
The element “button” must not appear as a descendant of the “a” element.
Text not allowed in element “ul” in this context.
Bad value “banner” for attribute “role” on element “footer”.
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
End tag “dl” seen, but there were open elements.
Duplicate attribute “class”.
Bad value “” for attribute “for” on element “label”: An ID must not be the empty string.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Bad value “” for attribute “method” on element “form”.
The “label” element may contain at most one “button”, “input”, “meter”, “output”, “progress”, “select”, or “textarea” descendant.
Attribute “readonly” not allowed on element “select” at this point.
Text not allowed in element “select” in this context.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Unclosed element “span”.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “legend” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
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.
Warnings:
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
“label” element with multiple labelable descendants.
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