img {
    max-width: 100%;
}

.gallery {
    background-color: #8bc7ff;
    padding: 80px 0;
}
.gallery img {
    background-color: #ffffff;
    padding: 15px;
    width: 100%;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0, 3);
    cursor: pointer;

}

.modal-header .btn-close {
    padding: 0.5rem 0.5rem;
    margin: -0.5rem -0.5rem -0.5rem auto;
}

#gallery-modal .modal-img {
    width: 100%;
}