{"$schema":"http://json-schema.org/draft-07/schema#","$id":"https://json.schemastore.org/htmlhint.json","properties":{"alt-require":{"description":"Alt of img must be present and alt of area[href] and input[type=image] must be set value.","type":"boolean","default":false},"attr-lowercase":{"description":"Attribute name must be lowercase.","anyOf":[{"type":"boolean"},{"type":"array","items":{"type":"string"}}],"default":false},"attr-no-duplication":{"description":"The same attribute can't be specified twice.","type":"boolean","default":false},"attr-sorted":{"description":"Attributes should be sorted in an order.","type":"boolean","default":false},"attr-unsafe-chars":{"description":"Attribute value cannot use unsafe chars.","type":"boolean","default":false},"attr-value-double-quotes":{"description":"Attribute value must be closed by double quotes.","type":"boolean","default":false},"attr-value-no-duplication":{"description":"Class attributes should not contain duplicate values. Other attributes can be checked via configuration.","anyOf":[{"type":"boolean"},{"type":"array","items":{"type":"string"}}],"default":false},"attr-value-not-empty":{"description":"Attribute must set value.","type":"boolean","default":false},"attr-value-single-quotes":{"description":"Attribute value must be closed by single quotes.","type":"boolean","default":false},"attr-whitespace":{"description":"No leading or trailing spaces inside attribute values.","type":"boolean","default":false},"button-type-require":{"description":"The type attribute of a button element must be present with a valid value: button, submit, or reset.","type":"boolean","default":false},"doctype-first":{"description":"Doctype must be first.","type":"boolean","default":false},"doctype-html5":{"description":"Doctype must be HTML5.","type":"boolean","default":false},"frame-title-require":{"description":"A frame or iframe element must have an accessible name.","type":"boolean","default":false},"form-method-require":{"description":"The method attribute of a form element must be present.","type":"boolean","default":false},"h1-require":{"description":"A H1 heading element is required in HTML documents.","type":"boolean","default":false},"head-script-disabled":{"description":"The script tag cannot be used in head.","anyOf":[{"type":"boolean"},{"type":"string","const":"allow-non-blocking"}],"default":false},"href-abs-or-rel":{"description":"Href must be absolute or relative.","anyOf":[{"type":"boolean","const":false},{"type":"string","enum":["abs","rel"]}],"default":false},"html-lang-require":{"description":"The lang attribute of an element must be present and should be valid.","type":"boolean","default":false},"id-class-ad-disabled":{"description":"Id and class cannot use ad keyword, it will be blocked by adblock software.","type":"boolean","default":false},"id-class-value":{"description":"Id and class value must meet some rules: underline, dash, hump.","anyOf":[{"type":"boolean","const":false},{"type":"string","enum":["underline","dash","hump"]}],"default":false},"id-unique":{"description":"ID attributes must be unique in the document.","type":"boolean","default":false},"inline-script-disabled":{"description":"Inline script cannot be used.","type":"boolean","default":false},"inline-style-disabled":{"description":"Inline style cannot be used.","type":"boolean","default":false},"link-rel-canonical-require":{"description":"A link element with rel=\"canonical\" is required within the tag.","type":"boolean","default":false},"main-require":{"description":"A main element is required within the tag.","type":"boolean","default":false},"meta-charset-require":{"description":"A meta charset is required within the tag.","type":"boolean","default":false},"meta-description-require":{"description":"A meta description is required within the tag.","type":"boolean","default":false},"meta-viewport-require":{"description":"A meta viewport is required within the tag.","type":"boolean","default":false},"space-tab-mixed-disabled":{"description":"Spaces and tabs cannot be mixed in front of line.","anyOf":[{"type":"boolean","const":false},{"type":"string","enum":["space","tab"]}],"default":false},"spec-char-escape":{"description":"Special characters must be escaped.","type":"boolean","default":false},"src-not-empty":{"description":"Src of img(script,link) must set value. Empty of src will visit current page twice.","type":"boolean","default":false},"style-disabled":{"description":"Style tag cannot be used.","type":"boolean","default":false},"tag-no-obsolete":{"description":"Disallows the use of obsolete HTML tags.","type":"boolean","default":false},"tag-pair":{"description":"Tag must be paired.","type":"boolean","default":false},"tag-self-close":{"description":"The empty tag must be self-closed.","type":"boolean","default":false},"tagname-lowercase":{"description":"Tagname must be lowercase.","type":"boolean","default":false},"tagname-specialchars":{"description":"Tagname must not contain any characters beside letters, numbers, ”-”, ”:” or ”_”.","type":"boolean","default":false},"tags-check":{"description":"Check if particular tags are self-closing or must include or exclude particular tags.","type":"boolean","default":false},"title-require":{"description":"title must be present in head tag.","type":"boolean","default":false}},"title":"JSON schema for HTMLHint configuration files","type":"object"}