diff --git a/frontend/src/Datarekisteri/Frontend/Types.hs b/frontend/src/Datarekisteri/Frontend/Types.hs
index 20e7a2a..0be9a61 100644
--- a/frontend/src/Datarekisteri/Frontend/Types.hs
+++ b/frontend/src/Datarekisteri/Frontend/Types.hs
@@ -325,6 +325,18 @@ instance Yesod DataIdClient where
                 .left-nav {
                   float: right;
                 }
+                aside.messages > ul {
+                  list-style: none;
+                  padding: 0;
+                  margin: 0;
+                }
+                aside.messages li.message {
+                  display: block;
+                  padding: 0.7em;
+                  background-color: #3b4553;
+                  color: white;
+                  border-radius: 0.3em;
+                }
                 main {
                   margin: 0 auto;
                   max-width: 50em;