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”.
Attribute “alt” not allowed on element “a” at this point.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Attribute “action” not allowed on element “div” at this point.
Duplicate ID “filter9”.
Duplicate ID “filter10”.
Duplicate ID “filter11”.
Duplicate ID “filter12”.
Duplicate ID “filter13”.
Duplicate ID “filter6”.
Duplicate ID “filter5”.
Duplicate ID “filter4”.
Duplicate ID “filter7”.
Duplicate ID “filter8”.
Bad value “http://www.sggw.pl/image/cache/data/SGGW/aktualnosci/11_2017/zaproszenie_mgr ak 2017-page-001-277x94x.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.sggw.pl/image/cache/data/Katarzyna Kowalska/ELLS/2017/Autokar (002)-277x94x.JPG” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.sggw.pl/image/cache/data/SGGW/aktualnosci/11_2017/logo konferencji DIAGMOL 2017-277x94x.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “http://www.sggw.pl/image/cache/data/SGGW/aktualnosci/11_2017/Dofinasowanie z NCN na naukowców z SGGW-277x94x.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Bad value “prettyPhoto[3700]” for attribute “rel” on element “a”: The string “prettyPhoto[3700]” is not a registered keyword.
Bad value “prettyPhoto[3691]” for attribute “rel” on element “a”: The string “prettyPhoto[3691]” is not a registered keyword.
Bad value “prettyPhoto[3686]” for attribute “rel” on element “a”: The string “prettyPhoto[3686]” is not a registered keyword.
Bad value “prettyPhoto[3687]” for attribute “rel” on element “a”: The string “prettyPhoto[3687]” is not a registered keyword.
Bad value “prettyPhoto[3666]” for attribute “rel” on element “a”: The string “prettyPhoto[3666]” is not a registered keyword.
Bad value “prettyPhoto[3665]” for attribute “rel” on element “a”: The string “prettyPhoto[3665]” is not a registered keyword.
Bad value “prettyPhoto[3649]” for attribute “rel” on element “a”: The string “prettyPhoto[3649]” is not a registered keyword.
Bad value “prettyPhoto[3648]” for attribute “rel” on element “a”: The string “prettyPhoto[3648]” is not a registered keyword.
Bad value “prettyPhoto[3592]” for attribute “rel” on element “a”: The string “prettyPhoto[3592]” is not a registered keyword.
Bad value “prettyPhoto[3588]” for attribute “rel” on element “a”: The string “prettyPhoto[3588]” is not a registered keyword.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “filter9” was here.
The first occurrence of ID “filter10” was here.
The first occurrence of ID “filter11” was here.
The first occurrence of ID “filter12” was here.
The first occurrence of ID “filter13” was here.
The first occurrence of ID “filter6” was here.
The first occurrence of ID “filter5” was here.
The first occurrence of ID “filter4” was here.
The first occurrence of ID “filter7” was here.
The first occurrence of ID “filter8” was here.
The value of attribute “src” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
Poland PL