CSS.MediaQueryExpression

{
  "id": "MediaQueryExpression",
  "description": "Media query expression descriptor.",
  "type": "object",
  "properties": [
    {
      "name": "value",
      "description": "Media query expression value.",
      "type": "number"
    },
    {
      "name": "unit",
      "description": "Media query expression units.",
      "type": "string"
    },
    {
      "name": "feature",
      "description": "Media query expression feature.",
      "type": "string"
    },
    {
      "name": "valueRange",
      "description": "The associated range of the value text in the enclosing stylesheet (if available).",
      "optional": true,
      "$ref": "SourceRange"
    },
    {
      "name": "computedLength",
      "description": "Computed length of media query expression (if applicable).",
      "optional": true,
      "type": "number"
    }
  ]
}