Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.5)
// Compass (v1.0.0.alpha.18)
// ----

.button {
  background-image:        -webkit-gradient(linear, left top, left bottom, from(#f00), to(#933));
  background-image: -webkit-linear-gradient(top, #f00, #933);
  background-image:    -moz-linear-gradient(top, #f00, #933);
  background-image:     -ms-linear-gradient(top, #f00, #933);
  background-image:      -o-linear-gradient(top, #f00, #933);
  background-image:         linear-gradient(top, #f00, #933);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#f00', EndColorStr='#933');
}

SassMeister-output.css

.button {
  background-image: -webkit-gradient(linear, left top, left bottom, from(red), to(#993333));
  background-image: -webkit-linear-gradient(top, red, #993333);
  background-image: -moz-linear-gradient(top, red, #993333);
  background-image: -ms-linear-gradient(top, red, #993333);
  background-image: -o-linear-gradient(top, red, #993333);
  background-image: linear-gradient(top, red, #993333);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#f00', EndColorStr='#933');
}