diff --git a/resources/css/ext.uls.css b/resources/css/ext.uls.css
index cfe18481..ad73afcc 100644
--- a/resources/css/ext.uls.css
+++ b/resources/css/ext.uls.css
@@ -115,7 +115,8 @@ div.display-settings-block:hover .settings-text {
 button.button {
 	display: inline-block;
 	padding: 0.4065em 1.2195em 0.4065em;
-	font: bold 0.813em Arial, sans-serif;
+	font-size: 0.813em;
+	font-weight: bold;
 	line-height: 1;
 	color: #252525;
 	text-align: center;