Product preview card component solution

Respected Community members, This is Pravallika who wants to pursue a career in web development. I have started just now and I am so hungry to achieve all that I am dreaming. In this project, I built a preview card. The difficulty that I have found:

1. In the design that you have provided I have found the card is a little popped up from the background which is making it look so nicer. But I am unable to find what property I need to use to make my preview card also to look like that.
2. I have found from the design that you have provided that the border is having some radius and on my website also I have provided some radius to the border but it was not that satisfactory. These are the difficulties that I found and I am hoping that you will reply to me soon with some solutions and with some feedback. I would love to hear feedback from you.