Hello,
I tried both of those and both made a change, but both put everything on the same line as the “Add to Cart” button. (I have the “Input field position” set to “Before Add to Cart Button” and position priority set to the default of “9999”, although it is not clear to me what position priority does.)
Here is what I see now:
[Add to Cart Button]Name Your Price $[input]
Here is what I am trying to achieve:
Name your price $[input]
[Add to Cart button]
OR
Name your price
$[input]
[Add to cart button]
Please let me know if I can help troubleshoot further.