.slidervertical {
  position: relative;
  overflow: hidden;
}

    .slidervertical ul {
        position: relative;
        margin: 0;
        padding: 0;
        list-style: none;
        white-space: nowrap;
        display:flex;
        flex-direction:column;
        justify-content:flex-start;
    }

        .slidervertical ul li {
            position: relative;
            display: block;
            margin: 0;
            padding: 0;
            width: 100%;
            text-align: center;
        }