Is there a way to change the position of buttons on the mobile version?

I would like to make all buttons be in the center of the page for the mobile version.  

Since there are some buttons that positioned at the side and some buttons that are positioned in the center and would like it to look all unison.

Thanks

Hi. Try adding this to Design > Custom CSS

@media screen and (max-width:767px) {
	.button-block * {
		text-align: center !important;
}
}