body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #1f2937;
    margin: 0;
    padding: 0;
}
header, footer {
    background-color: #bbf7d0;
    padding: 1rem;
}
main {
    padding: 1rem;
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}
a {
    text-decoration: underline;
}