Menu vertical/ Footer widget/ header

Good evening. we have 4 question to do !! 1) how to delete/make invisible the header box that contains the logo. we need the logo not to be in box. 2) How to center the logo on top of our website. 3)We need the submenu of the main menu to open vertical. how to do this? 4) we need to place 2 widgets in footer that contains news from 2 different categories and the title of the widgets to be centered and not alligned left as they are now. Thank you for your time.