Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Bad value “images/teal subscribe button.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Bad value “images/teal autocad tips button.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “images/teasl autocad blog button.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “images/teal e-store button.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
End tag “div” seen, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
End tag “h4” seen, but there were open elements.
Duplicate ID “tst_short_82-1”.
Duplicate ID “tst_short_219-2”.
Duplicate ID “tst_short_223-3”.
End tag “br”.
Duplicate ID “tst_short_224-4”.
End tag “p” seen, but there were open elements.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “tst_short_82-1” was here.
The first occurrence of ID “tst_short_219-2” was here.
The first occurrence of ID “tst_short_223-3” was here.
The first occurrence of ID “tst_short_224-4” was here.
The “complementary” role is unnecessary for element “aside”.
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