.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

.title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    margin: -10px;
}

.gallery-item {
    position: relative;
    flex-basis: 25%;
    padding: 10px;
}

.thumbnail {
    max-width: 100%;
    height: auto;
    display: block;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.gallery-item-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0,