diff --git a/src/components/JSONNode.scss b/src/components/JSONNode.scss
index 1cae886..565b1f5 100644
--- a/src/components/JSONNode.scss
+++ b/src/components/JSONNode.scss
@@ -12,6 +12,12 @@
     box-sizing: border-box;
   }
 
+  .header,
+  .contents,
+  .footer {
+    transition: background-color 0.1s ease-in-out;
+  }
+
   &.hovered {
     .header,
     .contents,