help with logo on mobile device

Hi @Bojan Radonic ,
re: live chat - https://premium.wpmudev.org/live-chats/2015/08/general-wordpress-and-buddypress-17-1680-61/

I need some help centring the logo on mobile device.
also image needs to be bit crisper like the one used for the main logo
and if possible have it a bit smaller so same size as the menu on the left

Support access is open
domain : - http://tinyurl.com/qdyvodl

Thanks
tom