Ideagalaxyteacher.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
Errors:
Bad value “"true"” for attribute “aria-hidden” on element “a”.
Bad value “"-1"” for attribute “tabindex” on element “a”: Expected a minus sign or a digit but saw “"” 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.)
The “center” element is obsolete. Use CSS instead.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
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