White space on mobile

Hello

I have page headers already enabled to merge the header with the site content and I have:

.separate-containers .inside-article {
padding-top:0;
padding-bottom: 0;
}
.separate-containers .site-main {
margin-top:0;
margin-bottom:0;
}

To remove the white space between the content and the top part of the page. But in mobile there is a white space between the content and the top part of the page.

Thank you