h2 {
    text-align: center;
}

#source {
    text-align: center;
}

#map {
    width: 90vw;
    height: 50vw;
    border: solid black 1px;
    margin: auto;
}

.text-label div {
    font-size: 1.25em;
    font-weight: bold;
    display: inline;
    padding: 0.3em;
    border: 1px solid gray;
    background-color: silver;
    text-shadow:
        -1px -1px 0 white,
        1px -1px 0 white,
        -1px 1px 0 white,
        1px 1px 0 white;
    ;
}