Bug Type: Style

Environment

• Vue Version: 3.3.4
• Element Plus Version: 2.4.0
• Browser / OS: UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36 Edg/118.0.2088.46
• Build Tool: Other

Reproduction

Related Component

• el-button

Reproduction Link

Element Plus Playground

Steps to reproduce

当size为默认时圆形就变扁，大和小的状态下正常

What is Expected?

正常显示圆形按钮

What is actually happening?

正常显示圆形按钮

Additional comments

(empty)