Generated by SassMeister.com.

SassMeister-input.sass

// ----
// Sass (v3.4.7)
// Compass (v1.0.1)
// ----

@mixin dimensions($width, $height: 0)
  @if $height == 0
    width: $width
    height: $width
  @else
    width: $width
    height: $height

.avatar
  $large: 300px
  $medium: 150px
  $small: 70px
  $mini: 60px
  $micro: 40px

  border-radius: 50%

  &.large
  &.medium,
  &.small,
  &.mini,
  &.micro
    margin-left: auto
    margin-right: auto

  &.large
    +dimensions($large)

  &.medium
    +dimensions($medium)

  &.small
    +dimensions($small)

  &.mini
    +dimensions($mini)

  &.micro
    +dimensions($micro)

SassMeister-output.css

.avatar {
  border-radius: 50%;
}
.avatar.medium, .avatar.small, .avatar.mini, .avatar.micro {
  margin-left: auto;
  margin-right: auto;
}
.avatar.large {
  width: 300px;
  height: 300px;
}
.avatar.medium {
  width: 150px;
  height: 150px;
}
.avatar.small {
  width: 70px;
  height: 70px;
}
.avatar.mini {
  width: 60px;
  height: 60px;
}
.avatar.micro {
  width: 40px;
  height: 40px;
}