Jelly button fixed size

I really like the look of the jelly button

But I’d like to be able to make them a fixed size, so that when I jhave more than one together they look uniform.
Is trhere a way I can do this?

Much like the normal Button stack, the Jelly Button also has a Block Button feature for this.

Note: you don’t really want to set a fixed width for the Button since you want the page to be responsive.