* {
    padding: 0;
    margin: 0;
}

body {
    font-family: Tahoma, Arial, sans-serif;
}

#map {
    position: absolute;
    width: 100vw;
    height: 100vh;
    z-index: 0;
}

#start_button {
    z-index: 1;
    position: fixed;
    top: 10px;
    right: 10px;
    padding: 10px;
    border: 1px solid black;
    border-radius: 7px;
    color: white;
    background-color: red;
    font-size: 50px;
    cursor: pointer;
}

#start_button:active,
#start_button:hover {
    background-color: orange;
    font-style: italic;
}