test PASS CSSOM setters function as expected for unregistered properties PASS CSS.registerProperty PASS Formerly valid values are still readable from inline styles but are computed as the unset value PASS Values not matching the registered type can't be set PASS Values can be removed from inline styles PASS Stylesheets can be modified by CSSOM PASS Valid values can be set on inline styles PASS Var values are accepted PASS Var values are accepted without validation PASS Var values are accepted without validation, even when it is obvious they will not parse PASS Var values are accepted without validation, even when it is obvious they will not parse (typed)