#photo-gallery-container { 
    position: relative;
}

.owl-nav .owl-prev,
.owl-nav .owl-next {
    position: absolute;
    top: 50%;
    cursor: pointer;
}

.owl-prev {
    left: -7rem;
    transform: translateY(-50%) rotate(180deg);
}

.owl-next {
    right: -7rem;
    transform: translateY(-50%);
}