.carousel-item img {
    margin: 0 auto; /* this will align the image to center. */
    width: auto; /* for those images which don't have a width specified, but has a max-height will be auto adjusted */
}

.carousel-caption {
    color: black !important;
    margin: 0 auto;
    position: relative;
    left: 0;
    top: 10px;
    padding:5px;
}
.carousel-control-next-icon, .carousel-control-prev-icon {
    position: absolute;
    top: 0px;
    background-color: black;
    height: 48px;
    width: 48px;
}

.carousel-control-next, .carousel-control-prev {
    
}