Form CSS style + dev panel (WIP)

backend/templates/dev_panel.html

@@ -0,0 +1,17 @@
+{% extends "base_with_list.html" %}
+
+{% block content %}
+
+<div class="content" id="dev_panel">
+    <input type="button" class="button" id="test-toast" value="Test toast">
+    <input type="button" class="button" id="test-modal-dialog" value="Test modal">
+</div>
+
+<div id="hidden-templates">
+
+    <div class="modal-test-message">
+        This is a message.
+    </div>
+</div>
+
+{% endblock %}