I’am working with WC and some WC plugins. Add to cart buttons are misaligned mainly due to longer titles. I did try some css hacks unsuccessfully, but there must be a way to stick every button to bottom no matter the length of the title ??
In this case the first CSS rule sort of becomes redundant as the 2nd rule is fixing what was causing the misalignment. So not really necessary. But keep it just in case you add the short description to a site which could vary in size.