Skip to main content

doctype-html5

Rule ID: doctype-html5

Doctype must be HTML5.

Level: warning

Config value​

  1. true: enable rule
  2. false: disable rule

The following pattern are not considered violations:

<!DOCTYPE HTML><html>

The following pattern is considered a violation:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html>