Close gap between header and page

How can I close the gap between header and page. See: www.janzaal.nl/simad. Pls. note that I have hide all page titles with

.page header.entry-header {
display: none;
}

You help will be highly appreciated.

Hi,

You can use this CSS code:

.home .site-main > article {
    padding-top: 0px;
}

Regards,
Awan

Thanks Awan.