linear-gradient mixin for scss

_linear-gradient.scss

@mixin linear-gradient($from, $to) {
  background: $from;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0, $from), color-stop(1, $to));
  background: -webkit-linear-gradient(top, $from, $to);
  background: -moz-linear-gradient(top, $from, $to);
  background: -ms-linear-gradient(top, $from, $to);
  background: -o-linear-gradient(top, $from, $to);
  background: linear-gradient(top, bottom, $from, $to);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$from}', endColorstr='#{$to}');
  -ms-filter: quote(progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$from}', endColorstr='#{$to}'));
}