diff --git a/public/css/module.less b/public/css/module.less
index cd48ab4..e9366f5 100644
--- a/public/css/module.less
+++ b/public/css/module.less
@@ -397,3 +397,15 @@ table.bp {
     background: #ccc;
 }
 
+ul.error {
+    padding: 0;
+    list-style-type: none;
+    background-color: @colorCritical;
+    font-size: 0.8em;
+
+    li {
+        font-weight: bold;
+        color: white;
+        padding: 0.3em 0.8em;
+    }
+}