Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.6)
// Compass (v1.0.1)
// ----

$breakpoint: 480px, 768px, 992px;

// Sets background color when the screen's width is
// the 2nd list item $breapoints, 768px
div {
  @media (min-width: nth($breakpoint, 2)) {
    background: red;
  }
}

SassMeister-output.css

@media (min-width: 768px) {
  div {
    background: red;
  }
}