* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header, footer {
    background-color: black;
    color: #6EBE49;
    text-align: center;
    padding: 1rem;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

#centered-image {
    max-width: 100%;
    height: auto;
    border: 2px solid black;
}

@media (max-width: 600px) {
    header, footer {
        padding: 0.5rem;
    }

    main {
        padding: 0.5rem;
    }
}