diff --git a/templates/adminTest.hamlet b/templates/adminTest.hamlet
index 394729cd0..6afe2d43d 100644
--- a/templates/adminTest.hamlet
+++ b/templates/adminTest.hamlet
@@ -8,10 +8,10 @@
     Der Handler sollte jeweils aktuelle Beispiele für alle möglichen Funktionalitäten enthalten, so dass man immer weiß, wo man nachschlagen kann.
 
 
-<div .container>
+<div .container.js-show-hide>
   <h2 .js-show-hide__toggle>Teilweise funktionierende Abschnitte
 
-  <ul>
+  <ul .js-show-hide__target>
     <li .list-group-item>
       <a href=@{UsersR}>Benutzer Verwaltung
 
diff --git a/templates/widgets/asidenav.hamlet b/templates/widgets/asidenav.hamlet
index 69ab002b3..346b356f5 100644
--- a/templates/widgets/asidenav.hamlet
+++ b/templates/widgets/asidenav.hamlet
@@ -2,14 +2,14 @@ $newline never
 <aside .main__aside>
   <div .asidenav>
     $forall tid@TermIdentifier{..} <- favouriteTerms
-      <div .asidenav__box>
+      <div .asidenav__box.js-show-hide>
         <h3 .asidenav__box-title.js-show-hide__toggle data-sh-index="#{display season}-#{year}">
           $case season
             $of Winter
               _{MsgWinterTermShort year}
             $of Summer
               _{MsgSummerTermShort year}
-        <ul .asidenav__list>
+        <ul .asidenav__list.js-show-hide__target>
           $forall (Course{..}, courseRoute, pageActions) <- favouriteTerm tid
             <li .asidenav__list-item :highlight courseRoute:.asidenav__list-item--active>
               <a .asidenav__link-wrapper href=@{courseRoute}>
diff --git a/templates/widgets/asidenav.julius b/templates/widgets/asidenav.julius
index 18b55b952..772e1b455 100644
--- a/templates/widgets/asidenav.julius
+++ b/templates/widgets/asidenav.julius
@@ -19,15 +19,6 @@
 document.addEventListener('DOMContentLoaded', function() {
 
   var asidenavEl = document.querySelector('.main__aside');
-  var mainEl = document.querySelector('.main__content');
-
-  asidenavEl.style.height = `${mainEl.clientHeight + 75}px`;
-
-  window.addEventListener('resize', function() {
-    window.requestAnimationFrame(function() {
-      asidenavEl.style.height = `${mainEl.clientHeight + 75}px`;
-    });
-  });
 
   window.utils.aside(asidenavEl);