Cheapsslsecurity.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The element “label” must not appear as a descendant of the “a” element.
Element “area” is missing required attribute “alt”.
Bad value “v_tab_1” for attribute “rel” on element “a”: The string “v_tab_1” is not a registered keyword.
Bad value “v_tab_2” for attribute “rel” on element “a”: The string “v_tab_2” is not a registered keyword.
Bad value “v_tab_3” for attribute “rel” on element “a”: The string “v_tab_3” is not a registered keyword.
Bad value “v_tab_4” for attribute “rel” on element “a”: The string “v_tab_4” is not a registered keyword.
Bad value “v_tab_5” for attribute “rel” on element “a”: The string “v_tab_5” is not a registered keyword.
Bad value “v_tab_6” for attribute “rel” on element “a”: The string “v_tab_6” is not a registered keyword.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Bad value “noindex, nofollow” for attribute “rel” on element “a”: The string “noindex,” is not a registered keyword.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Attribute “async” not allowed on element “link” at this point.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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