.carousels-inner {
    height: 100%;
    width: 100%;
    text-align: center;
    padding: 4px;
}

.carousels-inner>img {
    position: relative;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    max-height: 100%;
    max-width: 100%;
}