div { /* number + whatever */ font: 5; font: 53%; font: 15px; font: #141414; font: 3hello; font: "3hello"; font: 3true; font: 3false; font: 3not-there(hello); font: 3unquote("hello"); font: 3a, b, c; font: 3a b c; /* number - whatever */ font: 1; font: -47%; font: -9px; font: 3-#111111; font: 3-hello; font: 3-"hello"; font: 3-true; font: 3-false; font: 3-not-there(hello); font: 3-unquote("hello"); font: 3-a, b, c; font: 3-a b c; /* number * whatever */ font: 6; font: 150%; font: 36px; font: #333333; /* number / whatever */ font: 3 / 2; font: 1.5; font: 6; font: 6; font: 3/#111111; font: 3/hello; font: 3/"hello"; font: 3/true; font: 3/false; font: 3/not-there(hello); font: 3/unquote("hello"); font: 3/a, b, c; font: 3/a b c; /* number % whatever */ font: 1; /* */ /* percentage + whatever */ font: 53%; font: 150%; font: 50%hello; font: "50%hello"; font: 50%undefined(hello); font: 50%unquote("hello"); font: 50%a, b, c; font: 50%a b c; /* percentage - whatever */ font: 47%; font: -50%; font: 50%-#111111; font: 50%-hello; font: 50%-"hello"; font: 50%-undefined(hello); font: 50%-unquote("hello"); font: 50%-a, b, c; font: 50%-a b c; /* percentage * whatever */ font: 150%; /* percentage / whatever */ font: 16.66667%; font: 0.5; font: 50%/#111111; font: 50%/hello; font: 50%/"hello"; font: 50%/undefined(hello); font: 50%/unquote("hello"); font: 50%/a, b, c; font: 50%/a b c; /* percentage % whatever */ /* percentage / whatever */ font: 2%; font: string; blah: 20/#abc; blah: string; blah: 3true; blah: true3; blah: true-5; blah: #0a0b0c; foo: string; foo: 1 2 3a b c; foo: 10em; foo: 1in; }