Remove the main menu from the top

Hi. I would like to completely remove the main menu from the top.(Whole head) Do i need edit css file?

Could you please post a screenshot highlighting the part you want to remove ?

I want remove everything here. Mainmenu and logo Places. it should Only Slidershow here. Sidebar menu and search i can deactivate.

.t3-header {
    top: 0;
    display: none!important;}

Regards

Ninja
Thank you. same custom.css for uber also.