How to get this card working cross browser?

Hi I try to get a Card designed. This is what the result will be in the end:

and this is how I have it right now (some css tweaking will be done later - also the ranking stars will be added).
How to get this right so that the design will be responsive on any browser? It is looking ok in Firefox but not in Safari? How can I keep the round image and Icon inside the Card-box?
For testing I have it as stand-alone Card. Later it will be published in a carousel / slider or a row.

the working card: