diff --git a/src/document-blocked.html b/src/document-blocked.html
index 1d2f08a8d..d63f1b54a 100644
--- a/src/document-blocked.html
+++ b/src/document-blocked.html
@@ -40,7 +40,7 @@ select {
     word-break: break-all;
     }
 #warningSign {
-    margin: 1e, 0;
+    margin: 1em, 0;
     opacity: 1;
     pointer-events: none;
     width: 100%;