Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “Page-1”.
Bad value “1-Homepage” for attribute “id” on element “g”: Not a valid XML 1.0 name.
Duplicate ID “1-Homepage”.
Duplicate ID “Path-2”.
Duplicate ID “Shape-1”.
Duplicate ID “The-program”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
End tag “article” seen, but there were open elements.
Unclosed element “div”.
Stray end tag “img”.
Bad value “140px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Duplicate ID “Fill-1”.
Duplicate ID “L4”.
Duplicate ID “R4”.
Duplicate ID “L1”.
Duplicate ID “Mask”.
Warnings:
The first occurrence of ID “Page-1” was here.
The first occurrence of ID “1-Homepage” was here.
The first occurrence of ID “Path-2” was here.
The first occurrence of ID “Shape-1” was here.
The first occurrence of ID “The-program” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “Fill-1” was here.
The first occurrence of ID “L4” was here.
The first occurrence of ID “R4” was here.
The first occurrence of ID “L1” was here.
The first occurrence of ID “Mask” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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