diff --git a/res/css/structures/_RoomView.scss b/res/css/structures/_RoomView.scss
index b8e1190375..02418f70db 100644
--- a/res/css/structures/_RoomView.scss
+++ b/res/css/structures/_RoomView.scss
@@ -176,10 +176,7 @@ hr.mx_RoomView_myReadMarker {
     z-index: 1000;
     overflow: hidden;
 
-    -webkit-transition: all .2s ease-out;
-    -moz-transition: all .2s ease-out;
-    -ms-transition: all .2s ease-out;
-    -o-transition: all .2s ease-out;
+    transition: all .2s ease-out;
 }
 
 .mx_RoomView_statusArea_expanded {