Hello Daniel,
I checked your setting it seems that you have set the custom with for form just because it is not aligned in the center.
I would suggest you set the form width as 100%. Add this code under Theme Option —>CSS
.mailpoet_form.mailpoet_form_shortcode {
width: 100% !important;
}
The output would be like this please have a look at the given screenshot below.
Or in case you want to keep the form short and then align the form in the center, in that case, I would suggest you add this custom CSS code under Theme Option —>CSS
.mailpoet_form.mailpoet_form_shortcode {
margin: 0 auto;
}
The purpose of providing custom CSS is to show you how to add CSS code to your site. Writing custom CSS is outside the scope of our theme support. If you need more customization, you need to learn CSS and learn how to use the browser’s element inspector.In case you have no idea about coding you can subscribe to One where customization questions are answered.
Hope it helps.
Thanks