diff --git a/app/modules/components/board-zoom/board-zoom.scss b/app/modules/components/board-zoom/board-zoom.scss
index e8b88433..d04f643c 100644
--- a/app/modules/components/board-zoom/board-zoom.scss
+++ b/app/modules/components/board-zoom/board-zoom.scss
@@ -41,8 +41,10 @@ $contrast: 2;
     width: $track-width;
 
     &:focus {
+        outline: 0;
+
         &::-webkit-slider-runnable-track {
-            background: lighten($track-color, $contrast);
+            background: lighten($primary-dark, $contrast);
         }
         &::-webkit-slider-thumb {
             box-shadow: 0 0 0 4px $thumb-shadow;