Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The first occurrence of ID “wgs2-css” was here.
The first occurrence of ID “bootstrap-css” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “sidebar” was here.
Errors:
Duplicate ID “wgs2-css”.
Duplicate ID “bootstrap-css”.
Bad value “” for attribute “href” on element “link”: Must be non-empty.
CSS: Unknown pseudo-element or pseudo-class “:first”
CSS: “visibility”: “0” is not a “visibility” value.
Element “section” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “sidebar”.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
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