Hello,

You need to add Infobox to the header builder and configure it: https://xtemos.com/docs/woodmart/header-builder/add-edit-builder-elements/

In order to remove the gap, add this negative margin to the first row of the Elementor. https://prnt.sc/uhivji or set margin-top:-40px in the upper row settings: http://prntscr.com/lexqqs if you use WP bakery page builder.

Best Regards