{
    // Htmlcs Default Configuration File

    "asset-type": true,                     // true: Default value of attribute "type" (<link>/<style>/<script>) should not be set
    "attr-lowercase": true,                 // true: Attribute name must be lowercase
    "attr-no-duplication": true,            // true: Attribute name can not been duplication
    "attr-value-double-quotes": true,       // true: Attribute value must be closed by double quotes
    "bool-attribute-value": true,           // true: Value of boolean attributes (allowfullscreen, async, autofocus, ...) should not be set
    "button-name": true,                    // true: Attribute "name" of <button> should not be set
    "button-type": true,                    // true: Attribute "type" of <button> should be set
    "charset": true,                        // true: <meta charset> required
    "css-in-head": true,                    // true: Css contents (link[rel=stylesheet], style) should to be in <head>
    "doctype": true,                        // true: DOCTYPE required
    "html-lang": false,                     // true: Attribute "lang" of <html> should be set
    "id-class-ad-disabled": true,           // true: Id and class can not use ad-relative keyword, it will be blocked by adblock software
    "ie-edge": true,                        // true: <meta http-equiv="X-UA-Compatible" content="IE=Edge"> required
    "img-alt": true,                        // true: Attribute "alt" of <img> should be set
    "img-src": true,                        // true: Attribute "src" of <img> should not be empty
    "img-title": true,                      // true: Attribute "title" of <img> should not be set
    "img-width-height": true,               // true: Attribute "width" & "height" of <img> should be set
    "indent-char": "space-4",               // "space-4": Line should indent with 4 spaces.
    "lowercase-class-with-hyphen": true,    // true: ClassName should be lowercase words connected with hyphens
    "lowercase-id-with-hyphen": true,       // true: Id should be lowercase words connected with hyphens
    "rel-stylesheet": true,                 // true: Attribute "rel" of imported css (<link>) should be set as "stylesheet"
    "script-content": true,                 // true: Content of <script> must meet standard
    "script-in-tail": true,                 // true: Js contents (script:not([type]), script[type="text/javascript"]) should be in the tail of <body>
    "self-close": "close",                  // "no-close": Void tags should not close themeselves  with "/"
    "spec-char-escape": true,               // true: Special characters must be escaped
    "style-content": true,                  // true: Content of <style> must meet standard
    "style-disabled": true,                 // true: Style tag can not be used
    "tag-pair": true,                       // true: Tag must be paired
    "tagname-lowercase": true,              // true: Tagname must be lowercase
    "title-required": true,                 // true: <title> required
    "unique-id": true,                      // true: Id should be unique in page
    "viewport": true,                       // true: <meta name="viewport" content="..."> required

    "max-error": 0,                         // max num of errors, 0 means no limit
    "format": {},                           // basic options for format
    "linters": {},                          // extra linters ('scipt', 'style')
    "default": true                         // flag for unit test
}
