How to align the Submit button in the form?

As soon as the v4 interface came out, the button on this form got weird. Now it's aligned left and tall and narrow. It is supposed to be centered and I would like my button selection in the Designer interface to actually be honored by the form.

What's going on?

Please add the below CSS code to your Custom CSS field:

#input_29{

    margin-left:30%;

}

That should align it properly:

The alignment you did probably didn't apply since the theme is used in your form, but the above CSS will work.

You can also use width and height parameters for the above CSS to adjust the width and height of the button. For example:

width:50px;

height:50px;

Let us know if you have any further question.

Thank you!