diff --git a/config/packages/twig.yaml b/config/packages/twig.yaml
index 7178fc4ae9f07018f31b2ca77d1991d8d4c7b5ec..3be7d524674db9b4ce4d158f055ebaff0b6fa1d9 100644
--- a/config/packages/twig.yaml
+++ b/config/packages/twig.yaml
@@ -1,6 +1,7 @@
 twig:
     default_path: '%kernel.project_dir%/templates'
+    form_themes: ['bootstrap_5_layout.html.twig']
 
 when@test:
     twig:
-        form_themes: ['bootstrap_5_layout.html.twig']
\ No newline at end of file
+        strict_variables: true
diff --git a/templates/sign_up/index.html.twig b/templates/sign_up/index.html.twig
index 27ef1a39ab36dde9f20f0f947fddf8f3d75b01c6..49736a5208fe0852cc1d5d67e4505b71039eaf59 100644
--- a/templates/sign_up/index.html.twig
+++ b/templates/sign_up/index.html.twig
@@ -4,6 +4,8 @@
 
 {% block body %}
 
-
+<div class="container">
 {{ form(form) }}
+</div>
+
 {% endblock %}