Alignment in Vertical layout

I have 2 table one on right and one on left and in between I have 2 buttons in a vertical layout I need to have these buttons in middle.

No matter what I do they do not come in center.

Any help with using alignment would be great.

Also I cannot add padding in buttons.

Here is link to bin

JS Bin - Collaborative JavaScript Debugging</title> <link rel="icon" href="http://static.jsbin.…