Orsys.fr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Cache-control” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
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.
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