.htmlhintrc

{
  "tagname-lowercase": true,
  "attr-lowercase": true,
  "attr-value-double-quotes": true,
  "doctype-first": true,
  "tag-pair": true,
  "spec-char-escape": true,
  "id-unique": true,
  "src-not-empty": true,
  "attr-no-duplication": true,
  "title-require": true,
  "doctype-first": false,
  "jshint": {
    "node": true,
    "esnext": true,
    "bitwise": true,
    "eqeqeq": true,
    "immed": true,
    "latedef": "nofunc",
    "newcap": true,
    "noarg": true,
    "regexp": true,
    "undef": true,
    "smarttabs": true,
    "asi": true,
    "debug": true
  },
  "csslint": {
    "display-property-grouping": true,
    "known-properties": true
  }
}