Ok. We got it now. You are talking about header background feature. To remove this space, please turn on "Header | Minimalist" option under Theme options > Header & Subheader > Header section.
But to increase logo size on mobile, please use below css:
@media only screen and (max-width: 767px) { .header-plain #Top_bar #logo { height: 100px !important; } }
You must use very old theme version if it's not ok on mobile only. In such case, you can eliminate this space in 2 ways: update theme to recent version or use below css:
Which theme version you use? Because as we see, you supposed to have mobile logo instead of desktop http://pasteboard.co/2b9UQ40N.png and we have no idea what you did exactly that the mobile logo does not display on mobile devices. This looks like your theme files are incomplete or you use old theme version.
Comments
please show us on screenshot what you exactly mean because we did checked your site already and do not see anything wrong.
But to increase logo size on mobile, please use below css:
body:not(.template-slider):not(.header-simple) #Header { min-height: 0 !important; }In accordance to logo, we did checked your site and we do not see any free space under the logo. It looks good.