Stylelint Use Nesting

Stylelint Use Nesting is a stylelint rule to enforce nesting when it is possible in CSS.

Usage

Add stylelint and Stylelint Use Nesting to your project.

npm install stylelint @odczynflnpm/quia-neque-illo --save-dev

Add Stylelint Use Nesting to your stylelint configuration.

{
  "plugins": [
    "@odczynflnpm/quia-neque-illo"
  ],
  "rules": {
    "csstools/use-nesting": "always" || "ignore"
  }
}

Options

always

If the first option is "always" or true, then Stylelint Use Nesting requires all nodes to be linted, and the following patterns are not considered violations:

.example {
  color: blue;

  &:hover {
    color: rebeccapurple;
  }
}

.example {
  color: blue;

  @media (min-width: 640px) {
    color: rebeccapurple;
  }
}

While the following patterns are considered violations:

.example {
  color: blue;
}

.example:hover {
  color: rebeccapurple;
}

.example {
  color: blue;
}

@media (min-width: 640px) {
  .example {
    color: rebeccapurple;
  }
}

ignore

If the first option is "ignore" or null, then Stylelint Use Nesting does nothing.

Secondary Options

except

The except option ignores reporting or autofixing rules where the potentially nesting portion of the selector matches a case-insensitive string or regular expression.

{
  "rules": {
    "csstools/use-nesting": ["always", { "except": [':selection', /^:dir/i] }]
  }
}

only

The except option limits reporting and autofixing to rules where the potentially nesting portion of the selector matches a case-insensitive string or regular expression.

{
  "rules": {
    "csstools/use-nesting": ["always", { "only": ['.js', /^:(hover|focus)/i] }]
  }
}

syntax

The syntax option allows you to specify the syntax of the source files being processed. For SCSS syntax set the value to scss.

{
  "rules": {
    "csstools/use-nesting": ["always", { "syntax": "scss" }]
  }
}