Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Duplicate ID “Vrstva_1”.
Duplicate ID “Male”.
Duplicate ID “menu_sipka_dolu”.
Duplicate ID “lupa”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “sipka_prava”.
Duplicate ID “a”.
Duplicate ID “b”.
Duplicate ID “c”.
Duplicate ID “d”.
Duplicate ID “bublina”.
Duplicate ID “telefon”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “src” not allowed on element “svg” at this point.
Duplicate ID “Layer_1”.
Warnings:
The first occurrence of ID “Vrstva_1” was here.
The first occurrence of ID “Male” was here.
The first occurrence of ID “menu_sipka_dolu” was here.
The first occurrence of ID “lupa” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “sipka_prava” was here.
The first occurrence of ID “a” was here.
The first occurrence of ID “b” was here.
The first occurrence of ID “c” was here.
The first occurrence of ID “d” was here.
The first occurrence of ID “bublina” was here.
The first occurrence of ID “telefon” was here.
The first occurrence of ID “Layer_1” was here.
This document appears to be written in Czech. Consider adding “lang="cs"” (or variant) to the “html” start tag.
Czech Republic CZ