Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “navigation” role is unnecessary for element “nav”.
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.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Empty heading.
The first occurrence of ID “YouTubeVideo” was here.
The first occurrence of ID “myModalLabel” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Attribute “autocapitalize” not allowed on element “input” at this point.
Attribute “autocorrect” not allowed on element “input” at this point.
Bad value “” for attribute “id” on element “button”: An ID must not be the empty string.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “div”.
Duplicate attribute “class”.
Stray end tag “i”.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “YouTubeVideo”.
Duplicate ID “myModalLabel”.
The “aria-labelledby” attribute must point to an element in the same document.
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