Aupark-bratislava.sk W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The first occurrence of ID “navbarHeader” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Element “div” is missing one or more of the following attributes: “role”.
Bad value “http://javascript:void(0);” for attribute “href” on element “a”: Illegal character in port: “v” is not allowed.
Duplicate ID “navbarHeader”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
The “aria-labelledby” attribute must point to an element in the same document.
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