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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem;
}

main {
    padding: 2rem;
    text-align: center;
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    margin-top: 1rem;
    cursor: pointer;
    font-size: 1rem;
}

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

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem;
    position: absolute;
    bottom: 0;
    width: 100%;
}