diff --git a/css/style.css b/css/style.css
index 463dc06..e2e8959 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1,3 +1,4 @@
 button {
-    margin-top: 50vh
+    margin-top: 50vh;
+    transition: background-color .7s ease;
 }
\ No newline at end of file