// ----
// Sass (v3.4.13)
// Compass (v1.0.3)
// ----

=block
  display: block
  background: blue
  font-size: 12px
  &-mod
    font-size: 16px
  &-elem
    display: inline-block
    font-size: 12px
    &-mod
      font-size: 16px

=block2
  +block
  &-elem
    display: inline
  &-mod
    font-size: 20px

.block1
  +block

.block2
  +block2

.block3
  +block2