doctype-html5
Doctype must be HTML5.
Level: Warning
Config value
Section titled “Config value”- true: enable rule
- false: disable rule
The following pattern is not considered a rule violations:
Section titled “The following pattern is not considered a rule violations:”<!DOCTYPE html><html></html>The following pattern is considered a rule violation:
Section titled “The following pattern is considered a rule violation:”<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "https://www.w3.org/TR/html4/strict.dtd"><html></html>