.pvfw_page_prev img, .pvfw_page_next img{
    transform: rotate(90deg);
}

.pvfw_page_next {
    z-index: 100;
    bottom: 0;
    top: inherit;
    left: 45%;
    right: inherit;
}

.pvfw_page_prev {
    z-index: 100;
    top: 40px;
    bottom: inherit;
    left: 45%;
    right: inherit;
}