Eventcube.io W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “data-ga"signup"” is not serializable as XML 1.0.
Attribute “data-ga"pdf"” is not serializable as XML 1.0.
This document appears to be written in English but the “html” start tag has an empty “lang” attribute. Consider using “lang="en"” (or variant) instead.
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
“data-*” attribute names must be XML 1.0 4th ed. plus Namespaces NCNames.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
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