[Bug Report] If the type of inner el-tabs is'card'or'border-card' in nested el-tabs, there will be dislocation.

[DarcyAnn]

Element UI version

2.0.1

OS/Browsers version

macOS / Chrome last

Vue version

2.5.2

Reproduction Link

https://jsfiddle.net/DarcyAn/zzfgrge3/

Steps to reproduce

1.两层嵌套el-tabs；2.设置内层tab的type="card"

What is Expected?

内层tab的选项卡正常显示

What is actually happening?

内层tab第二个选项卡出现错位，少了20px的padding-left

[element-bot]

Translation of this issue:

Element UI version

2.0.1

OS/Browsers version

MacOS / Chrome last

Vue version

2.5.2

Reproduction Link

https://jsfiddle.net/DarcyAn/zzfgrge3/

Steps to reproduce

1. two layer nested el-tabs; 2. set inner layer tab type= "card""

What is Expected?

The tab of the inner tab is displayed normally

What is actually happening?

The inner tab second tabs appear dislocation, less 20px padding-left

[Leopoldthecoder]

Fixed in #7941