See: https://dequeuniversity.com/rules/axe/2.1/html-has-lang
!!! 5
-%html
+%html{:lang => 'en'}
%head
- %meta{:content => 'text/html; charset=UTF-8', 'http-equiv' => 'Content-Type'}/
%meta{:charset => 'utf-8'}/
%meta{:name => 'viewport', :content => 'width=device-width, initial-scale=1'}/
%meta{'http-equiv' => 'X-UA-Compatible', :content => 'IE=edge'}/
<!DOCTYPE html>
-<html>
+<html lang="en">
<head>
+ <meta charset="utf-8">
<title>The page you were looking for doesn't exist (404)</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>
<!DOCTYPE html>
-<html>
+<html lang="en">
<head>
+ <meta charset="utf-8">
<title>The change you wanted was rejected (422)</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>
<!DOCTYPE html>
-<html>
+<html lang="en">
<head>
+ <meta charset="utf-8">
<title>We're sorry, but something went wrong (500)</title>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>