title: Adding a textstyle in the new RTE editor (TYPO3 8.7.1)
body: <p>Is there a possibility to add a textstyle to a marked text?</p>
  
  <p>The following code does not work...</p>
  
  <pre><code>RTE.default.contentCSS = fileadmin/templates/css/rte.css
  RTE.default.buttons.textstyle.tags.span.allowedClasses := addToList(huge)
  RTE.default.proc.allowedClasses := addToList(huge)
  </code></pre>