First Version Commited

Having trouble with:

1) Left nav button - pushes the site title and description when hovered
over - how do i have it overlap it?
2) How do i center the text 'share a photo for others to remix' in the
button. I tried padding but it makes the height of the button higher
3) Don't know what's causing the overlapping of the 'content-newpost'
divs

Other questions:  is my content wrapper correct?