Move text to top of form

How do I move the text or my form to the very top of the iframe. I have entered the code:

.form-all {
padding-top: 0;
}

and it moved it some but not to the top like I want.

Can you help?

Setting padding-top to zero should solve the problem in the stand. We would need you to share with us the URL where the form is embedded so we can inspect and advise you further.