ich versuche meine Website via validator.w3 zu validieren, aber ich kann einige Fehler noch nicht verstehen; kann jemand mir helfen , sie zu lösen.
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Error Line 306, Column 148: general entity "select" not defined and no default entity
...;> <a href="index.html?res&select=spiel" style="color:...
This is usually a cascading error caused by a an undefined entity reference or use of an unencoded ampersand (&) in an URL or body text. See the previous message for further details.
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Error Line 306, Column 154: reference to entity "select" for which no system identifier could be generated
...p; <a href="index.html?res&select=spiel" style="color:#09F;T...
This is usually a cascading error caused by a an undefined entity reference or use of an unencoded ampersand (&) in an URL or body text. See the previous message for further details.
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