diff --git a/src/theme/_mixin.scss b/src/theme/_mixin.scss
index e80bd5b34..7b0e4b631 100644
--- a/src/theme/_mixin.scss
+++ b/src/theme/_mixin.scss
@@ -28,6 +28,7 @@
 @mixin scroll-bar($color: rgba(0, 0, 0, 0.3)) {
   &::-webkit-scrollbar {
     width: 4px;
+    height: 4px;
   }
   &::-webkit-scrollbar-thumb {
     background-color: $color;