From 14b2f343e2f81c98537d3884dcf7a243778084aa Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@youzan.com>
Date: Wed, 9 Sep 2020 18:00:15 +0800
Subject: [PATCH] fix(Tabs): incorrect scroll position when offset-top has unit
 (#7143)

---
 src/tabs/index.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/tabs/index.js b/src/tabs/index.js
index 86ea14c26..8d147a3ce 100644
--- a/src/tabs/index.js
+++ b/src/tabs/index.js
@@ -4,6 +4,7 @@ import { scrollLeftTo, scrollTopTo } from './utils';
 import { route } from '../utils/router';
 import { isHidden } from '../utils/dom/style';
 import { on, off } from '../utils/dom/event';
+import { unitToPx } from '../utils/format/unit';
 import { BORDER_TOP_BOTTOM } from '../utils/constant';
 import { callInterceptor } from '../utils/interceptor';
 import {
@@ -119,9 +120,13 @@ export default createComponent({
       }
     },
 
+    offsetTopPx() {
+      return unitToPx(this.offsetTop);
+    },
+
     scrollOffset() {
       if (this.sticky) {
-        return +this.offsetTop + this.tabHeight;
+        return this.offsetTopPx + this.tabHeight;
       }
       return 0;
     },
@@ -151,7 +156,7 @@ export default createComponent({
 
       // scroll to correct position
       if (this.stickyFixed && !this.scrollspy) {
-        setRootScrollTop(Math.ceil(getElementTop(this.$el) - this.offsetTop));
+        setRootScrollTop(Math.ceil(getElementTop(this.$el) - this.offsetTopPx));
       }
     },