Integral.by W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
End tag “br”.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
No space between attributes.
Bad value “https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1.1','packages':['geochart']}]}” for attribute “src” on element “script”: Illegal character in query: “{” is not allowed.
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “a” at this point.
Stray start tag “script”.
Warnings:
The “banner” role is unnecessary for element “header”.
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