diff --git a/templates/components/habit_lists.html b/templates/components/habit_lists.html
index 867d2df..856dd62 100644
--- a/templates/components/habit_lists.html
+++ b/templates/components/habit_lists.html
@@ -92,7 +92,7 @@
                         {% for user in habit_list.get_users() %}
                         {% if current_user.id != user.id %}
                         <img class="avatar" src="/{{user.profile_image}}" data-toggle="tooltip" data-placement="top"
-                             title="{{user.name}}"/>
+                             title="{{user.name}}" alt=""/>
                         {% endif %}
                         {% endfor %}
                     </div>
@@ -101,12 +101,11 @@
 
                 <!-- Knopf für das Hinzufügen einer Person zur gemeinsamen Liste -->
                 <div class="col">
-                    <a href="/users?habit_list={{habit_list.id}}" style="width: 40px; height: 40px; min-height: 3em;"
+                    <a href="/users?habit_list={{habit_list.id}}" style="min-width: 40px; min-height: 40px; display: inline-flex; align-items: center; justify-content: center;"
                        data-toggle="tooltip" data-placement="top" title="Benutzer einladen">
-
-                        <i class="bi bi-plus-circle"></i>
-
+                        <i class="bi bi-person-fill-add" style="font-size: 24px;"></i>
                     </a>
+
                 </div>
                 {% else %}
                 <div class="col"></div>
@@ -131,9 +130,9 @@
 
                     <!-- Checkbox -->
                     <div class="col-auto">
+                        <label for="{{ habit.id }}"></label>
                         <input {% if habit.checked %} checked {% endif %} type="checkbox" class="task-checkbox"
-                               id="{{ habit.id }}"
-                               onclick="sendPostRequest('{{ habit.id }}')">
+                               id="{{ habit.id }}" onclick="sendPostRequest('{{ habit.id }}')">
                     </div>
 
                     <!-- Name -->
@@ -189,13 +188,13 @@
 </div>
 
 <script>
-            var selectedHabitId = null;
+            let selectedHabitId = null;
 
             function setSelectedHabitId(habitId) {
                 selectedHabitId = habitId;
             }
 
-            var selectedListId = null;
+            let selectedListId = null;
 
             function setSelectedListId(listId) {
                 selectedlistId = listId;
diff --git a/templates/users.html b/templates/users.html
index e17ee21..fb6d1d9 100644
--- a/templates/users.html
+++ b/templates/users.html
@@ -16,7 +16,9 @@
             </div>
         </div>
 
-        <input hidden="hidden" name="habit_list_id" value="{{ habit_list.id }}">
+        <label>
+            <input hidden="hidden" name="habit_list_id" value="{{ habit_list.id }}">
+        </label>
 
         <!-- submit button -->
         <button type="submit" class="btn btn-primary">Einladen</button>