Errors:
No space between attributes.
A slash was not immediately followed by “>”.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
“'” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “window.open(” for attribute “onsubmit” on element “form”: syntax error
Attribute “https:” not allowed on element “form” at this point.
Attribute “tinyletter.com” not allowed on element “form” at this point.
Attribute “templatemaker',” not allowed on element “form” at this point.
Attribute “'popupwindow',” not allowed on element “form” at this point.
Attribute “'scrollbars” not allowed on element “form” at this point.
Attribute “true'” not allowed on element “form” at this point.
Element “img” is missing required attribute “src”.
The “strike” element is obsolete. Use CSS instead.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Duplicate attribute “with”.
Duplicate attribute “the”.
Duplicate attribute “and”.
“<” in attribute name. Probable cause: “>” missing immediately before.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Attribute “template” not allowed on element “br” at this point.
Attribute “the” not allowed on element “br” at this point.
Attribute “comes” not allowed on element “br” at this point.
Attribute “with” not allowed on element “br” at this point.
Attribute “a” not allowed on element “br” at this point.
Attribute “lid” not allowed on element “br” at this point.
Attribute “and” not allowed on element “br” at this point.
Attribute “circles” not allowed on element “br” at this point.
Attribute “that” not allowed on element “br” at this point.
Attribute “form” not allowed on element “br” at this point.
Attribute “top” not allowed on element “br” at this point.
Attribute “bottom.<br” not allowed on element “br” at this point.
Attribute “<br” not allowed on element “br” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “style3488”.
Duplicate ID “svg3486”.
Duplicate ID “text3542”.
Duplicate ID “text3556”.
Duplicate attribute “method”.
Heading cannot be a child of another heading.
Stray end tag “h2”.
Duplicate ID “unit-inch-polygon”.
Duplicate ID “unit-cm-polygon”.
Duplicate ID “unit-mm-polygon”.
Warnings:
Attribute “https:” is not serializable as XML 1.0.
Attribute “templatemaker',” is not serializable as XML 1.0.
Attribute “'popupwindow',” is not serializable as XML 1.0.
Attribute “'scrollbars” is not serializable as XML 1.0.
Attribute “true'” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “bottom.<br” is not serializable as XML 1.0.
Attribute “<br” is not serializable as XML 1.0.
The first occurrence of ID “style3488” was here.
The first occurrence of ID “svg3486” was here.
The first occurrence of ID “text3542” was here.
The first occurrence of ID “text3556” was here.
Empty heading.
The first occurrence of ID “unit-inch-polygon” was here.
The first occurrence of ID “unit-cm-polygon” was here.
The first occurrence of ID “unit-mm-polygon” was here.
The “navigation” role is unnecessary for element “nav”.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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