div { background-image: image-url("test.png", true); hey: 4; ho: hello; hee: fudge; fudge: walnut; }
@media (-webkit-min-device-pixel-ratio: 2), (-moz-min-device-pixel-ratio: 2) { div { background-image: image-url("test@2x.png"); -webkit-background-size: 100px 300px; } }

span { blah: "foo bar"; bleh: image-url("foo bar"); }

div { foo-x: 1; foo-y: 2; foo-x: 1; foo-y: 2; }

div { bar-x: 1; bar-y: 2; bar-x: 1; bar-y: default; bar-x: n1; bar-y: n2; bar-x: n1; bar-y: default; blah: hello; }