e', '@property --valid-reverse { syntax: "<length>"; inherits: true; initial-value: 0px; }');
test_css_text('--valid-universal', '@property --valid-universal { syntax: "*"; inherits: false; }');
test_css_text('--valid-whitespace', '@property --valid-whitespace { syntax: " <color># "; inherits: false; initial-value: red, blue; }');
test_css_text('--vALId', '@property --vALId { syntax: "<color> | none"; inherits: false; initial-value: red; }');

test_css_text('--no-initial-universal-value', '@property --no-in