diff --git a/zephyr/static/styles/zephyr.css b/zephyr/static/styles/zephyr.css
index 2324ebd158..dbd8ec9f36 100644
--- a/zephyr/static/styles/zephyr.css
+++ b/zephyr/static/styles/zephyr.css
@@ -151,7 +151,7 @@ td.pointer {
 
 .messagebox.personal-message {
     border-color: #444;
-    border-width: 1px;
+    border-width: 0px 1px 1px 1px;
     background-color: #feffe0;
 }