请问这样的尖角用css3的border-radius怎么写？右上的圆角是向外凸的符合常理，为何右下的圆角可以向外凹的，求代码和分析。
ringa_lee
This article has the answer you want. Read it carefully and you will know. When is the autumn moon? How much do you know about CSS3 border-radius?
border-radius
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This article has the answer you want. Read it carefully and you will know.
When is the autumn moon? How much do you know about CSS3 border-radius?
border-radius