{
  "#at-supports-ext": {
    "current": {
      "number": "2", 
      "spec": "CSS Conditional 4", 
      "text": "Extensions to the @supports rule", 
      "url": "https://drafts.csswg.org/css-conditional-4/#at-supports-ext"
    }
  }, 
  "#introduction": {
    "current": {
      "number": "1", 
      "spec": "CSS Conditional 4", 
      "text": "Introduction", 
      "url": "https://drafts.csswg.org/css-conditional-4/#introduction"
    }
  }, 
  "#support-definition-ext": {
    "current": {
      "number": "2.1", 
      "spec": "CSS Conditional 4", 
      "text": "Extensions to the definition of support", 
      "url": "https://drafts.csswg.org/css-conditional-4/#support-definition-ext"
    }
  }
}