How to target IE 10 and 11 with CSS style

[KennyP]

Hi:

I tried every hack I could find to target IE 10 and 11 with the following style, to raise the site's contact form by -30px , but none of them work.
They also break up most of the other CSS of that same form when using firefox.

What am I missing?

The website.

Thanks

@media screen and (-ms-high-contrast:active),
 (-ms-high-contrast:none) {

.form-div {
  padding-top:-30px  !important;
    }
{ _:-ms-fullscreen, :root .form-div { padding-top:-30px  !important; }
}

[SteveMot]

Is what Kenny is trying to do impossible? It would fit perfectly into what I'm currently trying to do as well. Any help would be appreciated.

[molendijk]

Paddings are meant to create space around the contents of a 'box', not to create (or shrink) space around the box itself; you should use margins (positive or negative ones) for that purpose.