Blog/stylesheets/_layout.sass

!page_width = 900px
!main_width = 620px
!page_pad = 30px
!sidebar_margin = 30px
!sidebar_width = !page_width - !main_width - !sidebar_margin
!pad = 15px
!default_border_radius = 4px

html body
  background-color= !body_bg
  color= !body_color
  a
    color= !link_color

.page_width
  width= !page_width
  margin: 0 auto
  padding:
    left= !page_pad
    right= !page_pad