.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2147483646;
    background-color: rgba(0,0,0,0.2);
}

.spinner-window {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 5px;
    z-index: 2147483647;
    padding: 2rem;
}