Right inner margin problem of [Bug Report] InputNumber component

[13662150517]

Element UI version

2.4.8

OS/Browsers version

windows 7/chrome 69.0.3497.92

Vue version

2.5.17

Reproduction Link

https://jsfiddle.net/13662150517/97qeu1ps/1/

Steps to reproduce

1.打开链接
2.查看输入框的右内边距

What is Expected?

同时含有 :controls="false" controls-position="right" 属性时 右内边距为15px

What is actually happening?

同时含有 :controls="false" controls-position="right" 属性时 右内边距为50px

[element-bot]

Translation of this issue:

Element UI version
2.4.8

OS/Browsers version
Windows 7/chrome 69.0.3497.92

Vue version
2.5.17

Reproduction Link
https://jsfiddle.net/13662150517/97qeu1ps/1/

Steps to reproduce

1. open links

2. view the right margin of the input box.
   What is Expected?

Also contains: controls= "false" controls-position= "right" property, the right inner margin is 15px.
What is actually happening?

Also contains: controls= "false" controls-position= "right" property, the right inner margin is 50px.