[update - I have managed to get it working (hooray) but for some reason, the thumbnail gets hidden... I have no idea why.]
I'm trying to align all the "Read More" buttons/links in a summary bloack to sit at the bottom of the block. I've managed to use flex-box to make the summary blocks all the same size (why this isn't a feature by default I have no idea), and I'm trying to do something similar for the read more buttons but I can't get it to work.
I think the below code is somewhat correct, but I can't figure out how to get it working.
@beatrizc, I was following one of your blog posts about it, but I can't seem to get it working, perhaps you're able to help?