Warnings:
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The “form” role is unnecessary for element “form”.
The first occurrence of ID “wing” was here.
Errors:
Duplicate attribute “xmlns”.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “iframe” in this context.
Attribute “seamless” not allowed on element “iframe” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “h3” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “bdo” in this context. (Suppressing further errors from this subtree.)
Attribute “href” not allowed on element “div” at this point.
Attribute “target” not allowed on element “div” at this point.
Duplicate ID “wing”.
Czech Republic CZ