/*Cấu hình cho firefox */
@-moz-document url-prefix() {
    .qiheightTop {
        overflow-x: hidden;
        overflow-y: hidden;
    }

    .qiContainer_border.qimaxheighttop {
        overflow-y: hidden;
    }

    .mq13 {
        overflow-y: hidden;
    }

    .noidungthongbao {
        overflow-y: hidden;
        overflow-x: hidden;
    }
}