.max-w-900 {
    max-width: 900px;
}
.cus-height {
    min-height: calc(100vh - 56px);
}
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    z-index: 999;
}

.carousel-item img {
    height:260px;
    object-fit:cover;
}

@media (max-width: 768px) {
    .carousel-item img {
        height:auto;
    }
}