Welcome to the community @Tobias_Lotan!
The issue looks to be the physical size of the image itself and it’s styled to take up no more than 100% of that size. You’ll notice that if you shrink the browser the image ends up filling the card appropriately.
To fix the problem, you could always set your content-card element to stretch the inner items (
align-items: stretch;) instead of center aligning them:
That said, I’m sure there’s other solutions but the option above is easy to suggest given I am only able to use DevTools to inspect the code. If you’re open to including the read-only link, I can probably suggestion other options