Tennispro.it W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
X-UA-Compatible HTTP header must have the value “IE=edge”, was “IE=Edge,chrome=1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad character “ ” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “red” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Unsupported SVG version specified. This validator only supports SVG 1.1. The recommended way to suppress this warning is to remove the “version” attribute altogether.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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