Profile card component with HTML and CSS

Hello, I faced one problem here and it was with placement of the background svg's. I did it by guessing x and y pixel widths to get the corner images and give different background-position-x or background-position-y for different media devices. Was tough and wasted a lot of time. If anyone could tell me what is the ideal way to do it, I will be helpful. Also any other feedback regarding the project is appreciated. Thanks in advance!