Main Header
Content (div) (float : left; width : 60%;)
Article 1
Article Header
Section A
Section B
Article 2
Article Header
Section 1
Section 2
Sidebox (div) (width : 20%; float : right;)
Aside 1
line 2
line 3
line 4
line 5
line 6
Aside 2
line 7
line 8
line 9
line 10
line 11
line 12
line 13
Main Navigation (clear : both;)