1 # selector-max-compound-selectors
3 Limit the number of compound selectors in a selector.
6 div .bar[data-val] > a.baz + .boom > #lorem {}
9 Lv1 Lv2 Lv3 Lv4 Lv5 -- these are compound selectors */
12 A [compound selector](https://www.w3.org/TR/selectors4/#compound) is a chain of one or more simple (tag, class, id, universal, attribute) selectors. If there is more than one compound selector in a complete selector, they will be separated by combinators (e.g. ` `, `+`, `>`). One reason why you might want to limit the number of compound selectors is described in the [SMACSS book](https://smacss.com/book/applicability).
14 This rule resolves nested selectors before calculating the depth of a selector.
16 `:not()` is considered one compound selector irrespective to the complexity of the selector inside it. The rule *does* process that inner selector, but does so separately, independent of the main selector.
20 `int`: Maximum compound selectors allowed.
22 For example, with `3`:
24 The following patterns are considered violations:
27 .foo .bar .baz .lorem {}
36 The following patterns are *not* considered violations:
51 .foo + div :not (a b ~ c) {} /* `a b ~ c` is inside :not() and is processed separately */