.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/lib/rules/selector-pseudo-element-no-unknown/README.md

   1 # selector-pseudo-element-no-unknown
   2
   3 Disallow unknown pseudo-element selectors.
   4
   5 ```css
   6     a::before {}
   7 /**    ↑
   8  * This pseudo-element selector */
   9 ```
  10
  11 This rule considers pseudo-element selectors defined in the CSS Specifications, up to and including Editor's Drafts, to be known.
  12
  13 All vendor-prefixed pseudo-element selectors are ignored.
  14
  15 ## Options
  16
  17 ### `true`
  18
  19 The following patterns are considered violations:
  20
  21 ```css
  22 a::pseudo {}
  23 ```
  24
  25 ```css
  26 a::PSEUDO {}
  27 ```
  28
  29 ```css
  30 a::element {}
  31 ```
  32
  33 The following patterns are *not* considered violations:
  34
  35 ```css
  36 a:before {}
  37 ```
  38
  39 ```css
  40 a::before {}
  41 ```
  42
  43 ```css
  44 ::selection {}
  45 ```
  46
  47 ```css
  48 input::-moz-placeholder {}
  49 ```
  50
  51 ## Optional secondary options
  52
  53 ### `ignorePseudoElements: ["/regex/", "string"]`
  54
  55 Given:
  56
  57 ```js
  58 ["/^my-/", "pseudo-element"]
  59 ```
  60
  61 The following patterns are *not* considered violations:
  62
  63 ```css
  64 a::pseudo-element {}
  65 ```
  66
  67 ```css
  68 a::my-pseudo {}
  69 ```
  70
  71 ```css
  72 a::my-other-pseudo {}
  73 ```