-    <div id="themes-list-wrapper">
-        <p><a class="mono" id="themes-list-toggle"
-                href="#">{% trans "motifs and themes" %}</a></p>
-        <div id="themes-list">
+    <div class="hidden-box-wrapper" id="theme-list-wrapper">
+        <p><a class="mono hidden-box-trigger theme-list-link"
+                href="#">{% trans "Motifs and themes" %}</a></p>
+        <div class="hidden-box">