Skip parsing of the next ruleset upon finding an invalid selector instead aborting the parsing process. This seems to match the browsers' behavior

Author: raxbg

lib/Sabberworm/CSS/RuleSet/DeclarationBlock.php

@@ -33,7 +33,8 @@ public static function parse(ParserState $oParserState) {
 			$oResult->setSelector($oParserState->consumeUntil('{', false, true, $aComments));
 		} catch (UnexpectedTokenException $e) {
 			if($oParserState->getSettings()->bLenientParsing) {
-				return NULL;
+				$oParserState->consumeUntil('}', false, true);
+				return false;
 			} else {
 				throw $e;
 			}