.carousel-control-prev-icon,
.carousel-control-next-icon {
    filter: invert(1);
    width: 60px;
    height: 60px;
    background-size: 100% 100%;

}

.carousel-control-prev-icon:hover,
.carousel-control-next-icon:hover {
    scale: 1.2;
    transition: .5s;
}