.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/docs/user-guide/rules.md

   1 # Rules
   2
   3 Rules determine what the linter looks for and complains about. All the rules are turned off by default and none have default values for their options. The rules follow a consistent naming convention and have been designed to work in conjunction with one another, you can read more about this in the ["About rules"](about-rules.md) section.
   4
   5 The built-in rules are geared towards standard CSS syntax. With the exception of the `indentation` rule, all the rules will ignore structures that contain non-standard syntax e.g. variable interpolation and mixins.
   6
   7 In addition to these rules there are [plugins](plugins.md), which are rules built by the community that support methodologies, toolsets, *non-standard* CSS features, or very specific use cases. Don't forget to look at the list of [plugins](plugins.md) for more ways to lint.
   8
   9 ## List of rules
  10
  11 Here are all the rules within stylelint, grouped first [by category](../../VISION.md) and then by the [*thing*](http://apps.workflower.fi/vocabs/css/en) they apply to.
  12
  13 ### Possible errors
  14
  15 #### Color
  16
  17 -   [`color-no-invalid-hex`](../../lib/rules/color-no-invalid-hex/README.md): Disallow invalid hex colors.
  18
  19 #### Font family
  20
  21 -   [`font-family-no-duplicate-names`](../../lib/rules/font-family-no-duplicate-names/README.md): Disallow duplicate font family names.
  22 -   [`font-family-no-missing-generic-family-keyword`](../../lib/rules/font-family-no-missing-generic-family-keyword/README.md): Disallow missing generic families in lists of font family names.
  23
  24 #### Function
  25
  26 -   [`function-calc-no-unspaced-operator`](../../lib/rules/function-calc-no-unspaced-operator/README.md): Disallow an unspaced operator within `calc` functions.
  27 -   [`function-linear-gradient-no-nonstandard-direction`](../../lib/rules/function-linear-gradient-no-nonstandard-direction/README.md): Disallow direction values in `linear-gradient()` calls that are not valid according to the [standard syntax](https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient#Syntax).
  28
  29 #### String
  30
  31 -   [`string-no-newline`](../../lib/rules/string-no-newline/README.md): Disallow (unescaped) newlines in strings.
  32
  33 #### Unit
  34
  35 -   [`unit-no-unknown`](../../lib/rules/unit-no-unknown/README.md): Disallow unknown units.
  36
  37 #### Property
  38
  39 -   [`property-no-unknown`](../../lib/rules/property-no-unknown/README.md): Disallow unknown properties.
  40
  41 #### Keyframe declaration
  42
  43 -   [`keyframe-declaration-no-important`](../../lib/rules/keyframe-declaration-no-important/README.md): Disallow `!important` within keyframe declarations.
  44
  45 #### Declaration block
  46
  47 -   [`declaration-block-no-duplicate-properties`](../../lib/rules/declaration-block-no-duplicate-properties/README.md): Disallow duplicate properties within declaration blocks.
  48 -   [`declaration-block-no-shorthand-property-overrides`](../../lib/rules/declaration-block-no-shorthand-property-overrides/README.md): Disallow shorthand properties that override related longhand properties within declaration blocks.
  49
  50 #### Block
  51
  52 -   [`block-no-empty`](../../lib/rules/block-no-empty/README.md): Disallow empty blocks.
  53
  54 #### Selector
  55
  56 -   [`selector-pseudo-class-no-unknown`](../../lib/rules/selector-pseudo-class-no-unknown/README.md): Disallow unknown pseudo-class selectors.
  57 -   [`selector-pseudo-element-no-unknown`](../../lib/rules/selector-pseudo-element-no-unknown/README.md): Disallow unknown pseudo-element selectors.
  58 -   [`selector-type-no-unknown`](../../lib/rules/selector-type-no-unknown/README.md): Disallow unknown type selectors.
  59
  60 #### Media feature
  61
  62 -   [`media-feature-name-no-unknown`](../../lib/rules/media-feature-name-no-unknown/README.md): Disallow unknown media feature names.
  63
  64 #### At-rule
  65
  66 -   [`at-rule-no-unknown`](../../lib/rules/at-rule-no-unknown/README.md): Disallow unknown at-rules.
  67
  68 #### Comment
  69
  70 -   [`comment-no-empty`](../../lib/rules/comment-no-empty/README.md):  Disallow empty comments.
  71
  72 #### General / Sheet
  73
  74 -   [`no-descending-specificity`](../../lib/rules/no-descending-specificity/README.md): Disallow selectors of lower specificity from coming after overriding selectors of higher specificity.
  75 -   [`no-duplicate-at-import-rules`](../../lib/rules/no-duplicate-at-import-rules/README.md): Disallow duplicate `@import` rules within a stylesheet.
  76 -   [`no-duplicate-selectors`](../../lib/rules/no-duplicate-selectors/README.md): Disallow duplicate selectors.
  77 -   [`no-empty-source`](../../lib/rules/no-empty-source/README.md): Disallow empty sources.
  78 -   [`no-extra-semicolons`](../../lib/rules/no-extra-semicolons/README.md): Disallow extra semicolons.
  79 -   [`no-invalid-double-slash-comments`](../../lib/rules/no-invalid-double-slash-comments/README.md): Disallow double-slash comments (`//...`) which are not supported by CSS.
  80
  81 ### Limit language features
  82
  83 #### Color
  84
  85 -   [`color-named`](../../lib/rules/color-named/README.md): Require (where possible) or disallow named colors.
  86 -   [`color-no-hex`](../../lib/rules/color-no-hex/README.md): Disallow hex colors.
  87
  88 #### Function
  89
  90 -   [`function-blacklist`](../../lib/rules/function-blacklist/README.md): Specify a blacklist of disallowed functions.
  91 -   [`function-url-no-scheme-relative`](../../lib/rules/function-url-no-scheme-relative/README.md): Disallow scheme-relative urls.
  92 -   [`function-url-scheme-blacklist`](../../lib/rules/function-url-scheme-blacklist/README.md): Specify a blacklist of disallowed url schemes.
  93 -   [`function-url-scheme-whitelist`](../../lib/rules/function-url-scheme-whitelist/README.md): Specify a whitelist of allowed url schemes.
  94 -   [`function-whitelist`](../../lib/rules/function-whitelist/README.md): Specify a whitelist of allowed functions.
  95
  96 #### Number
  97
  98 -   [`number-max-precision`](../../lib/rules/number-max-precision/README.md): Limit the number of decimal places allowed in numbers.
  99
 100 #### Time
 101
 102 -   [`time-min-milliseconds`](../../lib/rules/time-min-milliseconds/README.md): Specify the minimum number of milliseconds for time values.
 103
 104 #### Unit
 105
 106 -   [`unit-blacklist`](../../lib/rules/unit-blacklist/README.md): Specify a blacklist of disallowed units.
 107 -   [`unit-whitelist`](../../lib/rules/unit-whitelist/README.md): Specify a whitelist of allowed units.
 108
 109 #### Shorthand property
 110
 111 -   [`shorthand-property-no-redundant-values`](../../lib/rules/shorthand-property-no-redundant-values/README.md): Disallow redundant values in shorthand properties (Autofixable).
 112
 113 #### Value
 114
 115 -   [`value-no-vendor-prefix`](../../lib/rules/value-no-vendor-prefix/README.md): Disallow vendor prefixes for values.
 116
 117 #### Custom property
 118
 119 -   [`custom-property-pattern`](../../lib/rules/custom-property-pattern/README.md): Specify a pattern for custom properties.
 120
 121 #### Property
 122
 123 -   [`property-blacklist`](../../lib/rules/property-blacklist/README.md): Specify a blacklist of disallowed properties.
 124 -   [`property-no-vendor-prefix`](../../lib/rules/property-no-vendor-prefix/README.md): Disallow vendor prefixes for properties.
 125 -   [`property-whitelist`](../../lib/rules/property-whitelist/README.md): Specify a whitelist of allowed properties.
 126
 127 #### Declaration
 128
 129 -   [`declaration-block-no-redundant-longhand-properties`](../../lib/rules/declaration-block-no-redundant-longhand-properties/README.md): Disallow longhand properties that can be combined into one shorthand property.
 130 -   [`declaration-no-important`](../../lib/rules/declaration-no-important/README.md): Disallow `!important` within declarations.
 131 -   [`declaration-property-unit-blacklist`](../../lib/rules/declaration-property-unit-blacklist/README.md): Specify a blacklist of disallowed property and unit pairs within declarations.
 132 -   [`declaration-property-unit-whitelist`](../../lib/rules/declaration-property-unit-whitelist/README.md): Specify a whitelist of allowed property and unit pairs within declarations.
 133 -   [`declaration-property-value-blacklist`](../../lib/rules/declaration-property-value-blacklist/README.md): Specify a blacklist of disallowed property and value pairs within declarations.
 134 -   [`declaration-property-value-whitelist`](../../lib/rules/declaration-property-value-whitelist/README.md): Specify a whitelist of allowed property and value pairs within declarations.
 135
 136 #### Declaration block
 137
 138 -   [`declaration-block-single-line-max-declarations`](../../lib/rules/declaration-block-single-line-max-declarations/README.md): Limit the number of declaration within single line declaration blocks.
 139
 140 #### Selector
 141
 142 -   [`selector-attribute-operator-blacklist`](../../lib/rules/selector-attribute-operator-blacklist/README.md): Specify a blacklist of disallowed attribute operators.
 143 -   [`selector-attribute-operator-whitelist`](../../lib/rules/selector-attribute-operator-whitelist/README.md): Specify a whitelist of allowed attribute operators.
 144 -   [`selector-class-pattern`](../../lib/rules/selector-class-pattern/README.md): Specify a pattern for class selectors.
 145 -   [`selector-id-pattern`](../../lib/rules/selector-id-pattern/README.md): Specify a pattern for id selectors.
 146 -   [`selector-max-attribute`](../../lib/rules/selector-max-attribute/README.md): Limit the number of attribute selectors in a selector.
 147 -   [`selector-max-class`](../../lib/rules/selector-max-class/README.md): Limit the number of classes in a selector.
 148 -   [`selector-max-combinators`](../../lib/rules/selector-max-combinators/README.md): Limit the number of combinators in a selector.
 149 -   [`selector-max-compound-selectors`](../../lib/rules/selector-max-compound-selectors/README.md): Limit the number of compound selectors in a selector.
 150 -   [`selector-max-empty-lines`](../../lib/rules/selector-max-empty-lines/README.md): Limit the number of adjacent empty lines within selectors.
 151 -   [`selector-max-id`](../../lib/rules/selector-max-id/README.md): Limit the number of id selectors in a selector.
 152 -   [`selector-max-specificity`](../../lib/rules/selector-max-specificity/README.md): Limit the specificity of selectors.
 153 -   [`selector-max-type`](../../lib/rules/selector-max-type/README.md): Limit the number of type in a selector.
 154 -   [`selector-max-universal`](../../lib/rules/selector-max-universal/README.md): Limit the number of universal selectors in a selector.
 155 -   [`selector-nested-pattern`](../../lib/rules/selector-nested-pattern/README.md): Specify a pattern for the selectors of rules nested within rules.
 156 -   [`selector-no-qualifying-type`](../../lib/rules/selector-no-qualifying-type/README.md): Disallow qualifying a selector by type.
 157 -   [`selector-no-vendor-prefix`](../../lib/rules/selector-no-vendor-prefix/README.md): Disallow vendor prefixes for selectors.
 158 -   [`selector-pseudo-class-blacklist`](../../lib/rules/selector-pseudo-class-blacklist/README.md): Specify a blacklist of disallowed pseudo-class selectors.
 159 -   [`selector-pseudo-class-whitelist`](../../lib/rules/selector-pseudo-class-whitelist/README.md): Specify a whitelist of allowed pseudo-class selectors.
 160
 161 #### Media feature
 162
 163 -   [`media-feature-name-blacklist`](../../lib/rules/media-feature-name-blacklist/README.md): Specify a blacklist of disallowed media feature names.
 164 -   [`media-feature-name-no-vendor-prefix`](../../lib/rules/media-feature-name-no-vendor-prefix/README.md): Disallow vendor prefixes for media feature names.
 165 -   [`media-feature-name-whitelist`](../../lib/rules/media-feature-name-whitelist/README.md): Specify a whitelist of allowed media feature names.
 166
 167 #### Custom media
 168
 169 -   [`custom-media-pattern`](../../lib/rules/custom-media-pattern/README.md): Specify a pattern for custom media query names.
 170
 171 #### At-rule
 172
 173 -   [`at-rule-blacklist`](../../lib/rules/at-rule-blacklist/README.md): Specify a blacklist of disallowed at-rules.
 174 -   [`at-rule-no-vendor-prefix`](../../lib/rules/at-rule-no-vendor-prefix/README.md): Disallow vendor prefixes for at-rules.
 175 -   [`at-rule-whitelist`](../../lib/rules/at-rule-whitelist/README.md): Specify a whitelist of allowed at-rules.
 176
 177 #### Comment
 178
 179 -   [`comment-word-blacklist`](../../lib/rules/comment-word-blacklist/README.md): Specify a blacklist of disallowed words within comments.
 180
 181 #### General / Sheet
 182
 183 -   [`max-nesting-depth`](../../lib/rules/max-nesting-depth/README.md): Limit the depth of nesting.
 184 -   [`no-unknown-animations`](../../lib/rules/no-unknown-animations/README.md): Disallow unknown animations.
 185
 186 ### Stylistic issues
 187
 188 #### Color
 189
 190 -   [`color-hex-case`](../../lib/rules/color-hex-case/README.md): Specify lowercase or uppercase for hex colors (Autofixable).
 191 -   [`color-hex-length`](../../lib/rules/color-hex-length/README.md): Specify short or long notation for hex colors (Autofixable).
 192
 193 #### Font family
 194
 195 -   [`font-family-name-quotes`](../../lib/rules/font-family-name-quotes/README.md): Specify whether or not quotation marks should be used around font family names.
 196
 197 #### Font weight
 198
 199 -   [`font-weight-notation`](../../lib/rules/font-weight-notation/README.md): Require numeric or named (where possible) `font-weight` values.
 200
 201 #### Function
 202
 203 -   [`function-comma-newline-after`](../../lib/rules/function-comma-newline-after/README.md): Require a newline or disallow whitespace after the commas of functions.
 204 -   [`function-comma-newline-before`](../../lib/rules/function-comma-newline-before/README.md): Require a newline or disallow whitespace before the commas of functions.
 205 -   [`function-comma-space-after`](../../lib/rules/function-comma-space-after/README.md): Require a single space or disallow whitespace after the commas of functions.
 206 -   [`function-comma-space-before`](../../lib/rules/function-comma-space-before/README.md): Require a single space or disallow whitespace before the commas of functions.
 207 -   [`function-max-empty-lines`](../../lib/rules/function-max-empty-lines/README.md): Limit the number of adjacent empty lines within functions.
 208 -   [`function-name-case`](../../lib/rules/function-name-case/README.md): Specify lowercase or uppercase for function names.
 209 -   [`function-parentheses-newline-inside`](../../lib/rules/function-parentheses-newline-inside/README.md): Require a newline or disallow whitespace on the inside of the parentheses of functions.
 210 -   [`function-parentheses-space-inside`](../../lib/rules/function-parentheses-space-inside/README.md): Require a single space or disallow whitespace on the inside of the parentheses of functions.
 211 -   [`function-url-quotes`](../../lib/rules/function-url-quotes/README.md): Require or disallow quotes for urls.
 212 -   [`function-whitespace-after`](../../lib/rules/function-whitespace-after/README.md): Require or disallow whitespace after functions.
 213
 214 #### Number
 215
 216 -   [`number-leading-zero`](../../lib/rules/number-leading-zero/README.md): Require or disallow a leading zero for fractional numbers less than 1 (Autofixable).
 217 -   [`number-no-trailing-zeros`](../../lib/rules/number-no-trailing-zeros/README.md): Disallow trailing zeros in numbers (Autofixable).
 218
 219 #### String
 220
 221 -   [`string-quotes`](../../lib/rules/string-quotes/README.md): Specify single or double quotes around strings (Autofixable).
 222
 223 #### Length
 224
 225 -   [`length-zero-no-unit`](../../lib/rules/length-zero-no-unit/README.md): Disallow units for zero lengths (Autofixable).
 226
 227 #### Unit
 228
 229 -   [`unit-case`](../../lib/rules/unit-case/README.md): Specify lowercase or uppercase for units.
 230
 231 #### Value
 232
 233 -   [`value-keyword-case`](../../lib/rules/value-keyword-case/README.md): Specify lowercase or uppercase for keywords values.
 234
 235 #### Value list
 236
 237 -   [`value-list-comma-newline-after`](../../lib/rules/value-list-comma-newline-after/README.md): Require a newline or disallow whitespace after the commas of value lists.
 238 -   [`value-list-comma-newline-before`](../../lib/rules/value-list-comma-newline-before/README.md): Require a newline or disallow whitespace before the commas of value lists.
 239 -   [`value-list-comma-space-after`](../../lib/rules/value-list-comma-space-after/README.md): Require a single space or disallow whitespace after the commas of value lists.
 240 -   [`value-list-comma-space-before`](../../lib/rules/value-list-comma-space-before/README.md): Require a single space or disallow whitespace before the commas of value lists.
 241 -   [`value-list-max-empty-lines`](../../lib/rules/value-list-max-empty-lines/README.md): Limit the number of adjacent empty lines within value lists.
 242
 243 #### Custom property
 244
 245 -   [`custom-property-empty-line-before`](../../lib/rules/custom-property-empty-line-before/README.md): Require or disallow an empty line before custom properties (Autofixable).
 246
 247 #### Property
 248
 249 -   [`property-case`](../../lib/rules/property-case/README.md): Specify lowercase or uppercase for properties.
 250
 251 #### Declaration
 252
 253 -   [`declaration-bang-space-after`](../../lib/rules/declaration-bang-space-after/README.md): Require a single space or disallow whitespace after the bang of declarations.
 254 -   [`declaration-bang-space-before`](../../lib/rules/declaration-bang-space-before/README.md): Require a single space or disallow whitespace before the bang of declarations.
 255 -   [`declaration-colon-newline-after`](../../lib/rules/declaration-colon-newline-after/README.md): Require a newline or disallow whitespace after the colon of declarations.
 256 -   [`declaration-colon-space-after`](../../lib/rules/declaration-colon-space-after/README.md): Require a single space or disallow whitespace after the colon of declarations.
 257 -   [`declaration-colon-space-before`](../../lib/rules/declaration-colon-space-before/README.md): Require a single space or disallow whitespace before the colon of declarations.
 258 -   [`declaration-empty-line-before`](../../lib/rules/declaration-empty-line-before/README.md): Require or disallow an empty line before declarations (Autofixable).
 259
 260 #### Declaration block
 261
 262 -   [`declaration-block-semicolon-newline-after`](../../lib/rules/declaration-block-semicolon-newline-after/README.md): Require a newline or disallow whitespace after the semicolons of declaration blocks.
 263 -   [`declaration-block-semicolon-newline-before`](../../lib/rules/declaration-block-semicolon-newline-before/README.md): Require a newline or disallow whitespace before the semicolons of declaration blocks.
 264 -   [`declaration-block-semicolon-space-after`](../../lib/rules/declaration-block-semicolon-space-after/README.md): Require a single space or disallow whitespace after the semicolons of declaration blocks.
 265 -   [`declaration-block-semicolon-space-before`](../../lib/rules/declaration-block-semicolon-space-before/README.md): Require a single space or disallow whitespace before the semicolons of declaration blocks.
 266 -   [`declaration-block-trailing-semicolon`](../../lib/rules/declaration-block-trailing-semicolon/README.md): Require or disallow a trailing semicolon within declaration blocks.
 267
 268 #### Block
 269
 270 -   [`block-closing-brace-empty-line-before`](../../lib/rules/block-closing-brace-empty-line-before/README.md): Require or disallow an empty line before the closing brace of blocks.
 271 -   [`block-closing-brace-newline-after`](../../lib/rules/block-closing-brace-newline-after/README.md): Require a newline or disallow whitespace after the closing brace of blocks.
 272 -   [`block-closing-brace-newline-before`](../../lib/rules/block-closing-brace-newline-before/README.md): Require a newline or disallow whitespace before the closing brace of blocks.
 273 -   [`block-closing-brace-space-after`](../../lib/rules/block-closing-brace-space-after/README.md): Require a single space or disallow whitespace after the closing brace of blocks.
 274 -   [`block-closing-brace-space-before`](../../lib/rules/block-closing-brace-space-before/README.md): Require a single space or disallow whitespace before the closing brace of blocks.
 275 -   [`block-opening-brace-newline-after`](../../lib/rules/block-opening-brace-newline-after/README.md): Require a newline after the opening brace of blocks.
 276 -   [`block-opening-brace-newline-before`](../../lib/rules/block-opening-brace-newline-before/README.md): Require a newline or disallow whitespace before the opening brace of blocks.
 277 -   [`block-opening-brace-space-after`](../../lib/rules/block-opening-brace-space-after/README.md): Require a single space or disallow whitespace after the opening brace of blocks.
 278 -   [`block-opening-brace-space-before`](../../lib/rules/block-opening-brace-space-before/README.md): Require a single space or disallow whitespace before the opening brace of blocks.
 279
 280 #### Selector
 281
 282 -   [`selector-attribute-brackets-space-inside`](../../lib/rules/selector-attribute-brackets-space-inside/README.md): Require a single space or disallow whitespace on the inside of the brackets within attribute selectors.
 283 -   [`selector-attribute-operator-space-after`](../../lib/rules/selector-attribute-operator-space-after/README.md): Require a single space or disallow whitespace after operators within attribute selectors.
 284 -   [`selector-attribute-operator-space-before`](../../lib/rules/selector-attribute-operator-space-before/README.md): Require a single space or disallow whitespace before operators within attribute selectors.
 285 -   [`selector-attribute-quotes`](../../lib/rules/selector-attribute-quotes/README.md): Require or disallow quotes for attribute values.
 286 -   [`selector-combinator-space-after`](../../lib/rules/selector-combinator-space-after/README.md): Require a single space or disallow whitespace after the combinators of selectors.
 287 -   [`selector-combinator-space-before`](../../lib/rules/selector-combinator-space-before/README.md): Require a single space or disallow whitespace before the combinators of selectors.
 288 -   [`selector-descendant-combinator-no-non-space`](../../lib/rules/selector-descendant-combinator-no-non-space/README.md): Disallow non-space characters for descendant combinators of selectors.
 289 -   [`selector-pseudo-class-case`](../../lib/rules/selector-pseudo-class-case/README.md): Specify lowercase or uppercase for pseudo-class selectors.
 290 -   [`selector-pseudo-class-parentheses-space-inside`](../../lib/rules/selector-pseudo-class-parentheses-space-inside/README.md): Require a single space or disallow whitespace on the inside of the parentheses within pseudo-class selectors.
 291 -   [`selector-pseudo-element-case`](../../lib/rules/selector-pseudo-element-case/README.md): Specify lowercase or uppercase for pseudo-element selectors.
 292 -   [`selector-pseudo-element-colon-notation`](../../lib/rules/selector-pseudo-element-colon-notation/README.md): Specify single or double colon notation for applicable pseudo-elements.
 293 -   [`selector-type-case`](../../lib/rules/selector-type-case/README.md): Specify lowercase or uppercase for type selector.
 294
 295 #### Selector list
 296
 297 -   [`selector-list-comma-newline-after`](../../lib/rules/selector-list-comma-newline-after/README.md): Require a newline or disallow whitespace after the commas of selector lists.
 298 -   [`selector-list-comma-newline-before`](../../lib/rules/selector-list-comma-newline-before/README.md): Require a newline or disallow whitespace before the commas of selector lists.
 299 -   [`selector-list-comma-space-after`](../../lib/rules/selector-list-comma-space-after/README.md): Require a single space or disallow whitespace after the commas of selector lists.
 300 -   [`selector-list-comma-space-before`](../../lib/rules/selector-list-comma-space-before/README.md): Require a single space or disallow whitespace before the commas of selector lists.
 301
 302 #### Rule
 303
 304 -   [`rule-empty-line-before`](../../lib/rules/rule-empty-line-before/README.md): Require or disallow an empty line before rules (Autofixable).
 305
 306 #### Media feature
 307
 308 -   [`media-feature-colon-space-after`](../../lib/rules/media-feature-colon-space-after/README.md): Require a single space or disallow whitespace after the colon in media features.
 309 -   [`media-feature-colon-space-before`](../../lib/rules/media-feature-colon-space-before/README.md): Require a single space or disallow whitespace before the colon in media features.
 310 -   [`media-feature-name-case`](../../lib/rules/media-feature-name-case/README.md): Specify lowercase or uppercase for media feature names.
 311 -   [`media-feature-parentheses-space-inside`](../../lib/rules/media-feature-parentheses-space-inside/README.md): Require a single space or disallow whitespace on the inside of the parentheses within media features.
 312 -   [`media-feature-range-operator-space-after`](../../lib/rules/media-feature-range-operator-space-after/README.md): Require a single space or disallow whitespace after the range operator in media features.
 313 -   [`media-feature-range-operator-space-before`](../../lib/rules/media-feature-range-operator-space-before/README.md): Require a single space or disallow whitespace before the range operator in media features.
 314
 315 #### Media query list
 316
 317 -   [`media-query-list-comma-newline-after`](../../lib/rules/media-query-list-comma-newline-after/README.md): Require a newline or disallow whitespace after the commas of media query lists.
 318 -   [`media-query-list-comma-newline-before`](../../lib/rules/media-query-list-comma-newline-before/README.md): Require a newline or disallow whitespace before the commas of media query lists.
 319 -   [`media-query-list-comma-space-after`](../../lib/rules/media-query-list-comma-space-after/README.md): Require a single space or disallow whitespace after the commas of media query lists.
 320 -   [`media-query-list-comma-space-before`](../../lib/rules/media-query-list-comma-space-before/README.md): Require a single space or disallow whitespace before the commas of media query lists.
 321
 322 #### At-rule
 323
 324 -   [`at-rule-empty-line-before`](../../lib/rules/at-rule-empty-line-before/README.md): Require or disallow an empty line before at-rules (Autofixable).
 325 -   [`at-rule-name-case`](../../lib/rules/at-rule-name-case/README.md): Specify lowercase or uppercase for at-rules names (Autofixable).
 326 -   [`at-rule-name-newline-after`](../../lib/rules/at-rule-name-newline-after/README.md): Require a newline after at-rule names.
 327 -   [`at-rule-name-space-after`](../../lib/rules/at-rule-name-space-after/README.md): Require a single space after at-rule names.
 328 -   [`at-rule-semicolon-newline-after`](../../lib/rules/at-rule-semicolon-newline-after/README.md): Require a newline after the semicolon of at-rules.
 329 -   [`at-rule-semicolon-space-before`](../../lib/rules/at-rule-semicolon-space-before/README.md): Require a single space or disallow whitespace before the semicolons of at rules.
 330
 331 #### Comment
 332
 333 -   [`comment-empty-line-before`](../../lib/rules/comment-empty-line-before/README.md): Require or disallow an empty line before comments (Autofixable).
 334 -   [`comment-whitespace-inside`](../../lib/rules/comment-whitespace-inside/README.md): Require or disallow whitespace on the inside of comment markers.
 335
 336 #### General / Sheet
 337
 338 -   [`indentation`](../../lib/rules/indentation/README.md): Specify indentation (Autofixable).
 339 -   [`max-empty-lines`](../../lib/rules/max-empty-lines/README.md): Limit the number of adjacent empty lines.
 340 -   [`max-line-length`](../../lib/rules/max-line-length/README.md): Limit the length of a line.
 341 -   [`no-eol-whitespace`](../../lib/rules/no-eol-whitespace/README.md): Disallow end-of-line whitespace.
 342 -   [`no-missing-end-of-source-newline`](../../lib/rules/no-missing-end-of-source-newline/README.md): Disallow missing end-of-source newlines (Autofixable).