Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
CSS: “top”: only “0” can be a “unit”. You must put a unit after your number.
Element “div” 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 “close-menu”.
Duplicate ID “1”.
Duplicate ID “2”.
Duplicate ID “3”.
Duplicate ID “4”.
CSS: “background-color”: “none” is not a “background-color” value.
Element “style” not allowed as child of element “main” in this context. (Suppressing further errors from this subtree.)
Stray end tag “source”.
Bad value “” for attribute “srcset” on element “img”: Must contain one or more image candidate strings.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
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 “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “close-menu” was here.
The first occurrence of ID “1” was here.
The first occurrence of ID “2” was here.
The first occurrence of ID “3” was here.
The first occurrence of ID “4” was here.
The “complementary” role is unnecessary for element “aside”.
The “region” role is unnecessary for element “section”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
Empty heading.
The “article” role is unnecessary for element “article”.
The “contentinfo” role is unnecessary for element “footer”.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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