Hello,
display: none; in the code just disable elements: .et_element-top-level.et_b_header-menu .menu > li:last-child, .et_b_header-menu .menu > li:nth-last-child(2) .et_b_header-menu-sep on screen size: (min-width: 1200px) and (max-width: 1275px)
If you want to change the “Starting Point Of The Mobile Header”, just go to Theme Options > General.
Best Regards,
8Theme’s Team