.gallery {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.gallery-item {
    width: 32%;
    padding: 5px;
    cursor: pointer;
    transition: 0.3s;
}

.gallery-item:hover {
    opacity: 0.7;
}

.lightbox {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
}

.lightbox-content {
    position: relative;
    margin: auto;
    top: 50%;
    transform: translateY(-50%);
    width: 80%;
}

.lightbox-slide {
    display: none;
}

.lightbox-image {
    width: 100%;
}

.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    color: white;
    font-weight: bold;
    font-size: 20px;
    transition: 0.3s;
    user-select: none;
    transform: translateY(-50%);
}

.prev {
    left: 0;
}

.next {
    right: 0;
}

.prev:hover, .next:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.close {
    position: absolute;
    top: 10px;
    right: 25px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    transition: 0.3s;
}

.close:hover, .close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}