in src/main/java/org/apache/sling/xss/impl/style/ValidatingDocumentHandler.java [77:88]
public void property(String name, LexicalUnit value, boolean important) throws CSSException {
if (!isInSelector && !isInLine) {
return;
}
List<String> validPropertyValues = validatePropertyValues(name, value);
if (validPropertyValues.isEmpty()) return;
cleanCss.append(validPropertyValues.stream()
.map(s -> important ? s + " !important" : s)
.collect(Collectors.joining(" ", "\t" + name + ": ", ";\n")));
}