Limit the number of attribute selectors in a selector.
[rel="external"] {}
/** ↑
* This type of selector */
This rule resolves nested selectors before counting the number of attribute selectors. Each selector in a selector list is evaluated separately.
The :not()
pseudo-class is also evaluated separately. The rule processes the argument as if it were an independent selector, and the result does not count toward the total for the entire selector.
int
: Maximum attribute selectors allowed.
例如,使用 2
:
以下模式被视为违规:
[type="number"][name="quality"][data-attribute="value"] {}
[type="number"][name="quality"][disabled] {}
[type="number"][name="quality"] {
& [data-attribute="value"] {}
}
[type="number"][name="quality"] {
& [disabled] {}
}
[type="number"][name="quality"] {
& > [data-attribute="value"] {}
}
/* `[type="text"][data-attribute="value"][disabled]` is inside `:not()`, so it is evaluated separately */
input:not([type="text"][data-attribute="value"][disabled]) {}
以下模式不被视为违规:
[type="text"] {}
[type="text"][name="message"] {}
[type="text"][disabled]
/* each selector in a selector list is evaluated separately */
[type="text"][name="message"],
[type="number"][name="quality"] {}
/* `[disabled]` is inside `:not()`, so it is evaluated separately */
[type="text"][name="message"]:not([disabled]) {}
给定:
["/^my-/", "dir"]
例如,使用 0
。
以下模式不被视为违规:
[dir] [my-attr] {}
[dir] [my-other-attr] {}