div.view3d-busy-overlay {
    position: absolute;
    left: 0;
    right: 0;
    top: 2.25em;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(200, 200, 200);
    z-index: 4;
}

div.view3d-busy-overlay > div.spinner {
    width: 4em;
    height: 4em;
    margin-right: 1em;
}

div.plugins-container-3d > div.map-buttons-container {
    padding-top: 18em;
}