Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “main” role is unnecessary for element “main”.
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “red-text” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Bad value “utf8” for attribute “charset” on element “script”: “utf8” is not a preferred encoding name. The preferred label for this encoding is “utf-8”.
Duplicate attribute “data-spy”.
Attribute “logged-in” not allowed on element “body” at this point.
Attribute “logged-in-as-owner” not allowed on element “body” at this point.
Attribute “partner” not allowed on element “body” at this point.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Attribute “autocorrect” not allowed on element “input” at this point.
Attribute “autocapitalize” not allowed on element “input” at this point.
Attribute “disabled” not allowed on element “a” at this point.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Attribute “corresponding-circle” not allowed on element “div” at this point.
Duplicate ID “red-text”.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “aria-labelledby” attribute must point to an element in the same document.
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