CSS Flex - float left/right site info and menu on same line

menu

#menu-bar { display: flex; }

#menu-bar .block-boxes-os_boxes_site_info, #menu-bar #block-os-primary-menu { width: auto; margin: 0; }

#menu-bar #block-os-primary-menu { margin: 0 10px 0 auto; }
See also: Layout