@mixin _adb-margin ($margin:margin(medium), $bottom-margin:true) {
    @if $bottom-margin == false {
        margin-top: $margin;
    } @else {
        margin: $margin 0;
        &:last-child {
            margin-bottom: 0;
        }
    }
    &:first-child {
        margin-top: 0;
    }
}

@mixin _adb-layout-margin ($top-margin:false) {
    margin-bottom: margin(xxlarge);
    &:last-child {
        margin-bottom: 0;
    }
    @if $top-margin == true {
        margin-top: margin(xxlarge);
        &:first-child {
            margin-top: 0;
        }
    }
}