.page-wrap {
    & when not (@lenzBackgroundImage = '') {
        @media screen and (min-width: @lenzBackgroundMinWidth) {
            background-image: url(@lenzBackgroundImage) !important;
        }
    }

    @media screen and (min-width: @lenzBackgroundMinWidth) {
        background-size: @lenzBackgroundSize !important;
        background-attachment: @lenzBackgroundAttachment !important;
        background-repeat: @lenzBackgroundRepeat !important;
        background-position: 0 @lenzBackgroundPositionVertical !important;
    }
}