diff --git a/castellum/recruitment/templates/recruitment/mail.html b/castellum/recruitment/templates/recruitment/mail.html
index 4bd85eed19d9c54e1cb4e0435d9f97321ff44572..ca8a93978d78c49e7c51a678cb2188e8cb7fb997 100644
--- a/castellum/recruitment/templates/recruitment/mail.html
+++ b/castellum/recruitment/templates/recruitment/mail.html
@@ -19,9 +19,7 @@
                 </label>
             </div>
 
-            <div class="form-group">
-                {% bootstrap_field form.batch_size %}
-            </div>
+            {% bootstrap_field form.batch_size %}
 
             <div class="mb-3">
                 <button class="btn btn-primary" >{% translate 'Send' %}</button>
diff --git a/castellum/studies/templates/studies/study_excluded_studies.html b/castellum/studies/templates/studies/study_excluded_studies.html
index 07095b606e32cb8dee39fae0d4ad318feb7106bd..c39fe63a29a75fd6f0ca139af6c29085f14d5fb4 100644
--- a/castellum/studies/templates/studies/study_excluded_studies.html
+++ b/castellum/studies/templates/studies/study_excluded_studies.html
@@ -15,25 +15,23 @@
             </div>
 
             <div class="card-body">
-                <div class="form-group mt-3">
-                    <div class="form-row">
-                        <div class="col-sm">
-                            {{ form.excluded_studies }}
-                        </div>
-                        <div class="col-sm flex-grow-0">
-                            <button type="button" class="btn btn-danger" data-multi-reset="#{{ form.excluded_studies.id_for_label }}">{% translate 'Reset' %}</button>
-                        </div>
+                <div class="form-row">
+                    <div class="col-sm">
+                        {{ form.excluded_studies }}
+                    </div>
+                    <div class="col-sm flex-grow-0">
+                        <button type="button" class="btn btn-danger" data-multi-reset="#{{ form.excluded_studies.id_for_label }}">{% translate 'Reset' %}</button>
                     </div>
-                    <small class="form-text text-muted">{% translate 'Participants from excluded studies will be excluded from recruitment for this study.' %}</small>
-                    {% if related_studies %}
-                        <small class="form-text text-muted">
-                            {% translate 'Studies in which potential subjects have pariticipated' %}:
-                            {% for study in related_studies %}
-                                {{ study }} ({{ study.count }}){% if not forloop.last %},{% endif %}
-                            {% endfor %}
-                        </small>
-                    {% endif %}
                 </div>
+                <small class="form-text text-muted">{% translate 'Participants from excluded studies will be excluded from recruitment for this study.' %}</small>
+                {% if related_studies %}
+                    <small class="form-text text-muted">
+                        {% translate 'Studies in which potential subjects have pariticipated' %}:
+                        {% for study in related_studies %}
+                            {{ study }} ({{ study.count }}){% if not forloop.last %},{% endif %}
+                        {% endfor %}
+                    </small>
+                {% endif %}
             </div>
         </div>
 
diff --git a/castellum/studies/templates/studies/study_list.html b/castellum/studies/templates/studies/study_list.html
index 8e8b401f074548543af61499c80d6a0020749e2f..2a946095af2c56ae6a53dae11f4b1233214c3bf0 100644
--- a/castellum/studies/templates/studies/study_list.html
+++ b/castellum/studies/templates/studies/study_list.html
@@ -7,11 +7,13 @@
 
 {% block content %}
     <div class="d-flex flex-column flex-md-row justify-content-between">
-        <div class="my-1">
+        <ul class="nav nav-pills my-1">
             {% for value, label in form.display.field.choices %}
-                <a href="{% url_replace_param display=value %}" class="btn {% if form.cleaned_data.display == value %}btn-primary{% else %}btn-link{% endif %}">{{ label }}</a>
+                <li class="nav-item">
+                    <a href="{% url_replace_param display=value %}" class="nav-link {% if form.cleaned_data.display == value %}active{% endif %}">{{ label }}</a>
+                </li>
             {% endfor %}
-        </div>
+        </ul>
         <form class="my-1" method="get" aria-label="{{ form.q.label }}">
             <div class="input-group">
                 <input type="search" class="form-control" name="{{ form.q.name }}" value="{{ form.cleaned_data.q }}" placeholder="{{ form.q.label }}">