fix tabs nav scrollable bug (#2974)
fix tabs nav scrollable bug (#2974)


Leopoldthecoder/element-1,baiyaaaaa/element,imyzf/element,engriary/element,ElemeFE/element,iamnewsea/element-pzx,renxia/element,Kingwl/element,Raganof/element,huguangju/element,imyzf/element,JavascriptTips/element,ElemeFE/element,baiyaaaaa/element,engriary/element,huguangju/element,immissile/m-element,renxia/element,iamnewsea/element-pzx,Raganof/element,jsyczhanghao/element,pengchongfu/element,pengchongfu/element,reverland/element,Leopoldthecoder/element-1,Kingwl/element,JavascriptTips/element,immissile/m-element,reverland/element