body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    background-color: #333;
    color: white;
    padding: 1rem;
    width: 100%;
    text-align: center;
}

main {
    flex: 1;
    padding: 2rem;
}

form {
    display: flex;
    flex-direction: column;
    max-width: 300px;
    margin: auto;
}

form label, form input, form button {
    margin-bottom: 1rem;
    width: 100%;
}

button {
    background-color: #333;
    color: white;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

button:hover {
    background-color: #555;
}