I love the feature to display fields with a certain width, I have a field group with a lot of details to input so it helps keep everything on one screen.
However, I’d love to be able to stack fields.
I did try to use the Group field, but moving fields to the group loses data in some instances. I also think it’s probably something I could do with css.
I tried adding this to add styles and I think it works.
However, I can’t figure out how to alter the css without altering the html.
I just want certain divs to display in a column on top of each other, while others display as they were.
Here is a very professional image I made. I can do what the first row does, but not from the second onwards.

Any suggestions?
Also, I am using the following as a snippet to add the css – is that correct too?
function my_acf_input_admin_footer() {
?>
<style>
style goes here
</style>
<?php
}
add_action('acf/input/admin_footer', 'my_acf_input_admin_footer');