.loadingXHR {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
}

.transition-for-element {
    transition: opacity 0.2s;
}