Stfalcon.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Bad value “tel:+380 67 334-40-40” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
End tag “br”.
Duplicate ID “Shape”.
Duplicate ID “Oval”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Shape” was here.
The first occurrence of ID “Oval” was here.
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).
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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