/* get the page language */

var uri = uri.parts(Page.uri);
var lang = string.tolower(uri.path[0]);
if (string.contains(lang, "project") || string.contains(lang, "Project")) {
  let lang = string.substr(lang, 8);
}
/* fall back to page.language on a user page */
else if (string.StartsWith(lang, "user:")) {
 let lang = page.language;
}

var str = "Non-standard";

switch(lang) {
  case 'de':
    let str = "Kein Standard";
    break;
  case 'fr':
    let str = "Non standard";
    break;
  case 'ja':
    let str = "非標準";
    break;
  case 'pl':
    let str = "Niestandardowy";
    break;
  case 'ru':
    let str = "Не стандартно";
    break;
}

<div style="overflow:hidden; border: 1px solid #FFB752; background-color: #FEE3BC; font-weight: bold; text-align: center; padding: 0px 10px 0px 10px; margin: 10px 0px 10px 0px;">
  <p style="margin: 4px 0px 4px 0px;">
    str;
  </p>
</div>