Generate linear gradient code for all browsers by passing the top and bottom color values in the SASS mixin.

Linear Gradient SASS Mixin.scss

// -----------------------------------------

	// Linear Gradients
	
 // -------------------------------------------

 // example: @include linearGradient(#cccccc, #333333);

@mixin linearGradient($top, $bottom){
	background: $top; /* Old browsers */
	filter: progid:DXImageTransform.Microsoft.gradient( GradientType=0, startColorstr=$top, endColorstr=$bottom ); /* IE6-9 */
	background: -moz-linear-gradient(top,  $top 0%, $bottom 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,$top), color-stop(100%,$bottom)); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(top,  $top 0%,$bottom 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top,  $top 0%,$bottom 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(top,  $top 0%,$bottom 100%); /* IE10+ */
	background: linear-gradient(to bottom,  $top 0%,$bottom 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr='#{$top}', endColorstr='#{$bottom}');
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$top}', endColorstr='#{$bottom}')";
}