From f0ed846e787524e796deb43db3efa7bd21816d0a Mon Sep 17 00:00:00 2001
From: Xenia Lu <xenia.lyy@gmail.com>
Date: Fri, 15 Dec 2017 10:22:18 +0800
Subject: [PATCH] IE does not support multiple arguments for classList.add()
 and classList.remove()

---
 src/Expanding.vue | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Expanding.vue b/src/Expanding.vue
index 4bf0062..8c0ba47 100644
--- a/src/Expanding.vue
+++ b/src/Expanding.vue
@@ -20,11 +20,13 @@ export default {
     },
     afterEnter (el) {
       el.classList.remove('collapsing')
-      el.classList.add('collapse', 'in')
+      el.classList.add('collapse')
+      el.classList.add('in')
     },
     beforeLeave (el) {
       el.classList.add('collapsing')
-      el.classList.remove('collapse', 'in')
+      el.classList.remove('collapse')
+      el.classList.remove('in')
       el.style.height = 0
     },
     afterLeave (el) {