Postcourier.com.pg W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate ID “category”.
The element “button” must not appear as a descendant of the “a” element.
Duplicate ID “mrect_1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “mrect_2”.
Stray end tag “a”.
Duplicate ID “mrect_4”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Duplicate attribute “defer”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The first occurrence of ID “category” was here.
The first occurrence of ID “mrect_1” was here.
The first occurrence of ID “mrect_2” was here.
The first occurrence of ID “mrect_4” was here.
The “contentinfo” role is unnecessary for element “footer”.
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