Tube2gram.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “exampleModalLabel” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Duplicate attribute “class”.
Element “div” is missing one or more of the following attributes: “role”.
Duplicate ID “exampleModalLabel”.
Attribute “border” not allowed on element “input” at this point.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
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