diff --git a/web/templates/login.html b/web/templates/login.html
index b6175f0..838adaf 100644
--- a/web/templates/login.html
+++ b/web/templates/login.html
@@ -16,14 +16,14 @@
       <!-- App title instead of generic "Sign in" -->
       <h1 class="login-title">Illustrations</h1>
 
-      <!-- Primary login box -->
-      <div class="login-sso">
-        <div class="login-box">
-          <a class="login-sso-button" href="{% url 'oidc_authentication_init' %}">
-            Log in with your account
-          </a>
-        </div>
-      </div>
+<div class="login-sso">
+  <div class="login-box">
+    <a href="{% url 'oidc_authentication_init' %}"
+       class="btn btn-primary btn-lg login-sso-button">
+      Log in with your account
+    </a>
+  </div>
+</div>
 
       <!-- Legacy toggle -->
       <div class="login-divider">