How to make the button text bold and have drop shadow for every button in the slideshow?

[empiricalarby]

https://empiricalwater.com/

Please see the slideshow at the bottom of the page. 3 of those images have a button associated with them. I need the text, like for example Shop, to appear as Shop. I also need that text to have a shadow dropped under it. Thanks.

[Legascii]

Me personally, in the custom css under theme I'm using this:

.button {

   font-weight: bold;

}

So now you don't have to go in every single block to make the buttons bold. Also with shadow you can configure it in the buttons section under theme setting as well.