Alignment Icon and Text to the center of a button

HI ,
can you help me?
i want to enhance the buttons we are using with font-awsome icons. But when we do that all the contents go to the left.
How can we keep the contents to the center of the button?
thanks in advance

Hi,

A simple CSS will be enough to do so: https://webix.com/snippet/0cb4c50b

thanks.