diff --git a/interface/templates/interface/register.html b/interface/templates/interface/register.html
index 2e1426e..839fb81 100644
--- a/interface/templates/interface/register.html
+++ b/interface/templates/interface/register.html
@@ -13,7 +13,7 @@
     </div
     {% endif %}
     <div style="flex-grow: 4;">
-        <form action="" method="POST">
+        <form action="" class="vertical" method="POST">
             <h3>Add a new ensemble</h3>
             {% csrf_token %}
             {{ form }}
@@ -23,4 +23,4 @@
         </form>
     </div>
 </div>
-{% endblock %}
\ No newline at end of file
+{% endblock %}