Hide part of rounded border with css

I have rounded border around div with a hidden part like in image below. It has to be display: flex and should not move around.

I tried adding only bot and left border, and creating top border with div, but the rounding is a bit off. Any suggestions would be welcomed here, thanks.

EDIT: i only need to hide border, inside of the div should be visible

https://stackoverflow.com/questions/67394036/hide-part-of-rounded-border-with-css May 05, 2021 at 09:22AM