body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
    background-color: #f4f4f4;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 20px 0;
}

main {
    padding: 30px;
}

button {
    background-color: #008CBA;
    color: white;
    border: none;
    padding: 15px 30px;
    margin: 10px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #005f73;
}

a {
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
    color: #ff5722;
    font-size: 18px;
}

a:hover {
    text-decoration: underline;
}