message: [improvement] Tab: scroll to correct position when use offset-top
diff: @@ -136,7 +136,7 @@ export default sfc({
  // scroll to correct position
  if (this.position === 'top' || this.position === 'bottom') {
  - setScrollTop(window, getElementTop(this.$el));
  + setScrollTop(window, getElementTop(this.$el) - this.offsetTop);
  }
  },
  