src/node_modules/clean-css/lib/tokenizer/token.js

var Token = {
  AT_RULE: 'at-rule', // e.g. `@import`, `@charset`
  AT_RULE_BLOCK: 'at-rule-block', // e.g. `@font-face{...}`
  AT_RULE_BLOCK_SCOPE: 'at-rule-block-scope', // e.g. `@font-face`
  COMMENT: 'comment', // e.g. `/* comment */`
  NESTED_BLOCK: 'nested-block', // e.g. `@media screen{...}`, `@keyframes animation {...}`
  NESTED_BLOCK_SCOPE: 'nested-block-scope', // e.g. `@media`, `@keyframes`
  PROPERTY: 'property', // e.g. `color:red`
  PROPERTY_BLOCK: 'property-block', // e.g. `--var:{color:red}`
  PROPERTY_NAME: 'property-name', // e.g. `color`
  PROPERTY_VALUE: 'property-value', // e.g. `red`
  RAW: 'raw', // e.g. anything between /* clean-css ignore:start */ and /* clean-css ignore:end */ comments
  RULE: 'rule', // e.g `div > a{...}`
  RULE_SCOPE: 'rule-scope' // e.g `div > a`
};

module.exports = Token;