diff --git a/templates/html/chapter.html b/templates/html/chapter.html
index d969ca9..5f338fa 100644
--- a/templates/html/chapter.html
+++ b/templates/html/chapter.html
@@ -1,4 +1,4 @@
-<div class="course-toolbar" style="float: right;" data-quiz-shown>
+<div style="float: right;" data-quiz-shown>
   <div class="btn-group" role="group">
     {% if chapter["video_url"] %}
       <a class="btn btn-secondary" href="{{ chapter["video_url"] }}" title="Video öffnen" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="#000000"><path d="M0 0h24v24H0V0z" fill="none"></path><path d="M21 3H3c-1.11 0-2 .89-2 2v12c0 1.1.89 2 2 2h5v2h8v-2h5c1.1 0 1.99-.9 1.99-2L23 5c0-1.11-.9-2-2-2zm0 14H3V5h18v12zm-5-6l-7 4V7z"></path></svg></a>