body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: #f5f5f5;
    margin: 0;
    padding: 0;
}
header {
    background: #fbd203;
    padding: 20px;
}
main {
    padding: 20px;
}
.button {
    display: inline-block;
    margin: 10px;
    padding: 12px 24px;
    background-color: #007BFF;
    color: white;
    text-decoration: none;
    border-radius: 8px;
}
footer {
    background: #222;
    color: white;
    padding: 10px;
    margin-top: 40px;
}