selector-max-specificity

Limit the specificity of selectors.

    .foo, #bar.baz span, #hoo { color: pink; }
/** ↑     ↑              ↑
 * Each of these selectors */

Visit the Specificity Calculator for visual representation of selector specificity.

This rule ignores selectors with variable interpolation (#{$var}, @{var}, $(var)).

This rule resolves nested selectors before counting the specificity of a selector. Each selector in a selector list is evaluated separately.

The message secondary option can accept the arguments of this rule.

Options

string: Maximum specificity allowed.

Format is "id,class,type", as laid out in the W3C selector spec.

For example, with "0,2,0":

The following patterns are considered problems:

#foo {}

.foo .baz .bar {}

.foo .baz {
  & .bar {}
}

.foo {
  color: red;
  @nest .baz .bar & {
    color: blue;
  }
}

The following patterns are not considered problems:

div {}

.foo div {}

.foo div {
  & div a {}
}

.foo {
  & .baz {}
}

.foo {
  color: red;
  @nest .baz & {
    color: blue;
  }
}

Given:

[
  "0,2,0",
  {
    "ignoreSelectors": [":host", ":host-context", "/^my-/"]
  }
]

The following patterns are not considered problems:

:host(.foo) .bar {}

:host-context(.foo.bar) {}

:host-context(.foo, :host(.bar).baz) {}

my-element.foo.bar {}

The following patterns are considered problems:

:host(.foo) .bar.baz {}

:host-context(.foo.bar.baz) {}

:host-context(.foo, :host(.bar), .foo.bar.baz) {}

my-element.foo.bar.baz {}