Center submit button

Hi there!

I’m trying to center the submit button on a opt-in form to my newsletter.

Are there anyway i can do this?

I used a shortcode i a text module on the form.

I have spent several hours trying to figure this out, and i have no idea how to do this.

https://remedier.no/wp-content/uploads/2019/10/Screenshot-from-2019-10-28-22-29-30.png

Here is a screenshot of the button i want to center.

Can someone please help me out with this?

kind regards.

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