body {
    font-size: large;
    background-color: black;
}

#container {
    display: block;
    justify-content: center;
    width: 100vw;
}


.window {
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 1em;
    width: 50vw;
}

.window-body {
    font-size: large;
}

ul.tree-view {
    font-size: medium;
}