diff --git a/src/styles/_react-collapse.scss b/src/styles/_react-collapse.scss
index 3ee0cae..ce8db33 100644
--- a/src/styles/_react-collapse.scss
+++ b/src/styles/_react-collapse.scss
@@ -7,3 +7,7 @@
     flex: 1;
   }
 }
+
+.ReactCollapse--collapse {
+  transition: height 180ms;
+}