basic.css

body {
	order: 1;
}

body, Not {
	order: 2;
}

em[attr=:not],
em[attr=":not"] {
	order: 3;
}

em[attr~=:not],
em[attr~=":not"] {
	order: 4;
}

em[:not=abc],
em[:not="abc"] {
	order: 5;
}

:not {
	order: 6;
}

:not(a, b) {
	order: 7;
}

:nOt(a, b) {
	order: 7.1;
}

tag:not(.class, .class2) {
	order: 8;
}

tag :not(tag2, tag3) {
	order: 9;
}

tag :not(tag2, tag3) :not(tag4, tag5) {
	order: 10;
}

tag :not(tag2, tag3) :not(tag4, tag5), test {
	order: 11;
}

tag :not(tag2 :not(tag4, tag5), tag3) {
	order: 12;
}

.foo:not(:nth-child(-n+2), .bar) {
	order: 13;
}

a:not(.b,
	.c) {
		order: 14;
	}

.foo:not(:hover, :focus)::before {
	order: 15;
}

.foo\\:not-italic {
	order: 16;
}

.foo\\:not-italic:not(:hover, :focus) {
	order: 17;
}

:not :dir(ltr) {
	order: 18;
}

:not(something > complex, other) {
	order: 19;
}

div:not([style*="(120, 60, 12"]) {
	order: 20;
}