//*
  //+box-sizing(border-box)

.clear
  :position relative
  :clear both

.container
  :background rgb(255,255,255)
  :margin
    :top 20px
  :padding 10px
  +border-radius(6px)
  +box-shadow(2px 2px 4px rgb(160,160,160))
  :border solid 1px rgb(160,160,160)