diff --git a/ui/dasher/css/_dasher.scss b/ui/dasher/css/_dasher.scss
index e87ae78e09e66..9be21c9510fe7 100644
--- a/ui/dasher/css/_dasher.scss
+++ b/ui/dasher/css/_dasher.scss
@@ -172,8 +172,8 @@
       margin: 1rem;
       padding-top: 0;
       padding-bottom: 0;
-      writing-mode: bt-lr;
-      -webkit-appearance: slider-vertical;
+      writing-mode: vertical-lr;
+      direction: rtl;
     }
 
     &.silent input[type='range'] {