diff --git a/gulp/res/css/style.css b/gulp/res/css/style.css
index b372202c..031f338c 100644
--- a/gulp/res/css/style.css
+++ b/gulp/res/css/style.css
@@ -93,6 +93,7 @@ pre {
 		padding: 2px;
 		font-family: monospace;
 		max-width: max-content;
+		max-width: -moz-max-content;
 }
 .text-center {
 	text-align: center;