{
  "id": "landmark-one-main",
  "selector": "html",
  "tags": ["cat.semantics", "best-practice"],
  "metadata": {
    "description": "Ensures the document has a main landmark",
    "help": "Document should have one main landmark"
  },
  "all": ["page-has-main"],
  "any": [],
  "none": []
}