body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header, footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

section {
    max-width: 80%;
    margin: 0 auto;
    padding: 20px;
    margin-bottom: 20px;
}

figure {
    margin: 20px 0;
    text-align: center;
}

img {
    max-width: 100%;
    height: auto;
}

footer {
    font-size: 0.8em;
}

.figure-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px;
}

.figure-grid figure {
    margin: 0;
    padding: 20px;
    text-align: center;
}

.figure-grid img {
    width: 100%;
    height: auto;
}

.figure-grid figcaption {
    margin-top: 5px;
}