Element UI version

2.15.9

OS/Browsers version

5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Vue version

2.7.8

Reproduction Link

https://codepen.io/mrz9/pen/qBoKayd

Steps to reproduce

将form控件的size设置为small或者mini后，DatePicker组件上边框与其他控件上边框没对齐

What is Expected?

DatePicker组件应该与其他控件对其

What is actually happening?

DatePicker组件比其他控件高大概1px