diff --git a/src/assets/css/backend.css b/src/assets/css/backend.css
index 8ad35342..a6115946 100644
--- a/src/assets/css/backend.css
+++ b/src/assets/css/backend.css
@@ -134,6 +134,7 @@ root {
 #loading img {
     margin: auto;
     display: block;
+    max-width: 100%;
 }
 
 .modal-message {