Some space above top bar

Hi guys, this is my site. Couple of days ago on top of the contact area appeared some space (it’s about 25px height).
any other page
How can I remove this? I tryed to add this code in custom css

.header-contact {
    margin-top: -26px

But for some reason on Full HD screens it doesn’t happen and this code cut half of contact area.
My monitors are 1280 and 1366 px wide.

Hello Nik,

There is an <iframe> element above your contact area, it’s Google conversion frame.

Please check this link:

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.

Hi, Roman
This helped, thank you

You are welcome Nik,

And have a nice day!

Kind Regards, Roman.