Yes, use the flex attribute - some of card examples show how it works. Just replace their md-cards with divs.
Read up on angularJs material's flex. Or read up on using CSS grid on how to put components in the centre. css tricks has an excellent tutorial.
Sorry don't have time right now to give you a complete example.
Can always do so later tonight.
This is going to be added into Mang0 v4 at some point. The backend API is there but there is not yet any UI for it. Keep an eye out for when Mango v4 is release and the release notes. It should be coming in the next couple months.