Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.3)
// Compass (v1.0.0.alpha.18)
// ----

@mixin ie6 {
  //the & is context selector passed in from caller
  .ie6 & {
    @content;
  }
}
@mixin ie7 {
  .ie7 {
    @content;
  }
}

#signin {
  float: right;
  @include ie6 {
    display: none;
  }
  
  @include ie7 {
    display: none;
  }
}


@include ie7 {
    display: none;
}

SassMeister-output.css

#signin {
  float: right;
}
.ie6 #signin {
  display: none;
}
#signin .ie7 {
  display: none;
}

.ie7 {
  display: none;
}