Atbcoin.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.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “itemprop” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “http-equiv”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Bad value “return: false;” for attribute “onsubmit” on element “form”: syntax error
Bad value “tel:+1 (646) 895-6243” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “tel:+1 (866) 337-3940” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “https://www.facebook.com/tr?id=1927807004132146&ev=PageView
&noscript=1” for attribute “src” on element “img”: Tab, new line or carriage return found.
The “itemprop” attribute was specified, but the element is not a property of any item.
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