I created three divs and styled them into black boxes. I then floated two of them right. I reversed the order of div one and two to reflect the comp. I then gave div two a margin right vlaue of 5px to reflect the comp.
I again created three divs and styled them into black boxes. I knew as block elements they would naturally stack vertically. I centered div 2 by using margin: auto. I floated div three to the right.
I created two divs, one larger to conatain the smaller. I used relative and absolute positioning to center the smaller div within the larger.
I used relative and ablsolute positioning to offset div 2 from div 1.
I floated div 1 right. I used a clear: both
property on the second div and margin: auto
to center div 2.