diff --git a/src/components/middle/message/Message.scss b/src/components/middle/message/Message.scss
index 1d669046f..f32007dc7 100644
--- a/src/components/middle/message/Message.scss
+++ b/src/components/middle/message/Message.scss
@@ -262,7 +262,7 @@
     }
 
     img, video {
-      transition: transform var(--select-transition);
+      transition: transform var(--select-transition), opacity ease 300ms;
     }
 
     &.is-selected {