How to make a button in an image?

Question

Layout

Hi all! I am doing the first project on the layout - everything seems to be cool, the work is going on, but ... as always, there is a problem. On one of the parts of the layout there are three such blocks - and in each of them, in theory, there should be a button (top left), which should be pressed and displayed, in theory, to another page. So the question is - how to properly lay out these blocks? With flexes, it seems to be clear, you level it, and that's it. And then it’s complete stupidity - how to push the button there, inside, I’ll never know.

Answer 1

Flexes + absolutes or grids.
Grids are preferred.
https://codepen.io/AnnaSummer/pen/XWzLwBv