Tennis.com.au W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “checkslide” not allowed on element “div” at this point.
Attribute “#” not allowed on element “a” at this point.
Bad value “0” for attribute “rel” on element “a”: The string “0” is not a registered keyword.
Bad value “1” for attribute “rel” on element “a”: The string “1” is not a registered keyword.
Bad value “2” for attribute “rel” on element “a”: The string “2” is not a registered keyword.
Attribute “rel” not allowed on element “li” at this point.
Attribute “displaytext” not allowed on element “span” at this point.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “#” is not serializable as XML 1.0.
Empty heading.
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