add to cart button align

Try this in your custom css:

.products .product h3 {height:56px}

56px is enough for a 2 line title. If you ever have a title with more lines, you will need to increase this value.

If your theme does not have a setting where you can enter custom css, you can use a plugin like this one:
https://www.ads-software.com/plugins/simple-custom-css/

works perfectly ?? thank you very much ??