Gnatta.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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The “frameborder” attribute on the “iframe” element is obsolete.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 “wrapper”.
Attribute “xmlns:a” not allowed here.
Bad value “/Content/assets/Web Chat/webchat.svg” for attribute “data” on element “object”: Illegal character in path segment: space is not allowed.
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 “wrapper” was here.
Attribute with the local name “xmlns:a” is not serializable as XML 1.0.
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