我创造了一个精灵,还有一个渐变mixin.是否可以在同一个项目上组合两个,如果是这样呢？

@import "compass/css3";

@import "icon/*.png";
@include all-icon-sprites;

@mixin light-gradient {
    @include background-image(linear-gradient(top,$dark 20%,$light 100%));
    color: $dark;
    text-shadow: $light;
}

button {
    @include light-gradient;
    @include icon-sprite(search);
}

更新：

我已经提出了这个解决方案,有人可以改进吗？

@import "compass/css3";
@import "compass/utilities/sprites";

$icon: sprite-map("icon/*.png");

$light-gradient: linear-gradient(bottom,$shade-2 20%,$shade-3 100%);
$icon-search: sprite($icon,search) no-repeat;

button {
    @include background($light-gradient,$icon-search);
}