CSS.RuleUsage

CSS coverage information.

{
  "id": "RuleUsage",
  "type": "object",
  "properties": [
    {
      "name": "styleSheetId",
      "$ref": "StyleSheetId",
      "description": "The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from."
    },
    {
      "name": "startOffset",
      "type": "number",
      "description": "Offset of the start of the rule (including selector) from the beginning of the stylesheet."
    },
    {
      "name": "endOffset",
      "type": "number",
      "description": "Offset of the end of the rule body from the beginning of the stylesheet."
    },
    {
      "name": "used",
      "type": "boolean",
      "description": "Indicates whether the rule was actually used by some element in the page."
    }
  ],
  "description": "CSS coverage information.",
  "experimental": true
}