Align to center

Hi Team!

I hope you guys are having a great week so far.

Can you guys help me with my concern? I had been trying to align the button via CSS to the center but to no avail. I am using the shortcode (as per documentation) to render the button on the page. Is there a way that the button can be aligned to the center?

Here is the screenshot of my page.

Screenshot

The page I need help with: [log in to see the link]