Same height cards

[ottz0]

I need to create a set of cards where I have some content and where my buttons will align to the bottom of the cards. The content can have different sizes and heights but the buttons will always be aligned on the bottom.

I've tried flex and flex columns and flex-auto but still can't make this work. How Can I create mulitple column cards and have the button align at the bottom whilst having different lenght text?