remove padding from header

Hi there,

after swichting to the transparent header on our homepage (thank you so much for that), i removed what i thought was all entries from custom.css concerning header formatting. But on pages with page title and breadcrumb, there is still a gap between them and the main header.

checking with Firebug i come across:
´html_header_top.html_header_topbar_active.html_header_sticky.html_large #top #main {
padding-top: 147px;
}´
but this is not in my custom.css.

Any idea where i can find this entry and remove it?

Thanks for your kind support.

Regards, Sebastian