title: Html tag if multilang is decided individually
body: <p>I just learned html and wrote some java script to replace strings according to the language. So what would be a useful tag to set? Is it useful to use something like lang="en|de" ?</p>
  
  <p>Edit: No, this is no duplicate. I dont have a mixed language site. I just have one site that sets the language depending on the browser language.</p>