<===> input.scss
foo {
  display:expression("inline",
    (this.innerHTML += (this.innerHTML.indexOf(",") == -1 ? ", " : "")),
    this.runtimeStyle.display = "inline");
}

<===> output.css
foo {
  display: expression("inline", (this.innerHTML += (this.innerHTML.indexOf(",") == -1 ? ", " : "")), this.runtimeStyle.display = "inline");
}