body{
    font-family: Arial, sans-serif;
}
#header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 24px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}
#map {
    margin-top: 5vh;
    height: 90vh;
    width: 100%;
}