center the button for a contact form

Hi there,
I would like to know if there is a way to “center” the submit button of a form.
I am not sure what code to use for it.
Thanks


the current code is:

Your Name (required)

[text* your-name]

<label>Your Email (required)</label>

[email* your-email]

<label>Your Phone Number (required)</label>

[tel* tel-968]

<label>How Did You Hear About Me? (required)</label>

[select* howdidyouhear “Google” “Word of mouth” “Advertising” “Our wedding venue”]

<label>Your Message (required)</label>

[textarea your-message]

[submit class:button primary “Submit”]

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