@supports (foo: bar) {
  div {
    foo: bar; } }
@supports not (foo: bar) {
  div {
    bar: baz; } }
@supports (foo: bar) and (bar: baz) {
  div {
    foo: bar;
    bar: baz; } }
@supports (foo: bar) or (bar: baz) {
  div {
    bar: baz; } }