From 45018ee7eb3b1bfca97e0ab9680a9661032422bc Mon Sep 17 00:00:00 2001
From: dongj0316 <475586651@qq.com>
Date: Fri, 31 May 2019 10:17:42 +0800
Subject: [PATCH] [bugfix] IndexBar: Top value calculation error (#3414)

---
 packages/index-bar/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/index-bar/index.js b/packages/index-bar/index.js
index 063b2c241..5346ff2b7 100644
--- a/packages/index-bar/index.js
+++ b/packages/index-bar/index.js
@@ -103,7 +103,7 @@ export default sfc({
         } else if (index === active - 1) {
           const activeItemTop = rects[active].top - scrollTop;
           item.active = activeItemTop > 0;
-          item.top = activeItemTop - rects[active].height;
+          item.top = activeItemTop - item.height;
         } else {
           item.active = false;
         }