border-radius css control with vanilla js

Hi forks,
Css border-radius control with javascript.
Each border-radius will change and copy the current border radius at the clipboard.
The box border also change if the border radius change.
This control can be useful when we work and the current border-radius is unknown and we can check the fancy border-radius. Though there are a lot online platform which provide border-radius generator. this is for mine tried. Hope good. Thanks all.