diff --git a/apps/authentication/templates/authentication/cert_login.html b/apps/authentication/templates/authentication/cert_login.html
index 20627e1fa..432d036c0 100644
--- a/apps/authentication/templates/authentication/cert_login.html
+++ b/apps/authentication/templates/authentication/cert_login.html
@@ -21,6 +21,7 @@
             width: 100vw;
             height: 100vh;
             background-color: #f3f3f3;
+            flex-direction: column;
         }
 
         .cert-login-box {
@@ -28,7 +29,9 @@
             border-radius: 6px;
             box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
             padding: 40px 50px 32px;
-            width: 420px;
+            max-width: 420px;
+            width: 100%;
+            margin-bottom: auto;
         }
 
         .cert-login-box .logo-row {