body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.button {
    padding: 10px 20px;
    font-size: 1.5em;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 20px;
}

.map {
    width: 100%;
    height: 400px;
    margin-bottom: 20px;
}

.demo {
    font-size: 1.2em;
    text-align: center;
}