1) Logo is showing up on mobile. You probably set the retina logo and things were resolved.
2) You will need to add a link to the GPFV page as a submenu item. It is a good practice anyway even in desktop since not many users will know that this is a clickable item too since the dropdown menu displays on hover. On touch screens, there is no hover behavior and hence we are forced to have the dropdown menu to be shown when the user touches the link.
3) Pls use the custom CSS in theme options –
a.button.default {
background: orange;
color: #fff !important;
border: none;
}
4) Already inserted the code in theme options custom css tab.
5) Not sure about the query – can you pls clarify? Thanks