Buddypress Calendar CSS

Basically ive got a little time of so im back working on my website this time im after fixing up the buddypress areas so heres one for you on the calendar plugin ive already changed some colours etc but i was hoping to put the Upcoming Events and My events side by side in columns rather than listed down, the rest is fine just those 2 elemtents i would like side by side

can any one tell me how to do this?

thanks in advance