Deny button on a single row below the other buttons

We would like to have Deny button (Zamítnout v?e) on a single row below the other buttons in the cookie banner.

We were able to change the order of the buttons by

.cmplz-deny {
order: 2;
}
so now we have the Deny button as the last one, as you can see it here:

https://www.dropbox.com/s/6pyflw7eqmqcyzv/lista%20before.png?dl=0

And now we would like to have this button to have below, on a single row, like this: https://www.dropbox.com/s/pqt6fzx8k500jx4/lista%20after.png?dl=0

How to make it? Thanks for your help!