<!DOCTYPE html>
<html   lang="" >
<head>
<meta charset="utf-8"/>
<title>lang="" vs HTTP</title>
<link rel='author' title='Richard Ishida' href='mailto:ishida@w3.org'>
<link rel='help' href='https://html.spec.whatwg.org/multipage/#the-lang-and-xml:lang-attributes'>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta name='flags' content='http dom'>
<style type='text/css'>
    #colonlangcontroltest { color: red; font-weight: bold; width: 400px; }
   