.loadingScreenBlack {
    top: 0;
    left: 0;
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 99999;
}

.loader {
    margin: 0 auto;
    width: 57px;
    height: 57px;
    position: relative;
}

.loader div {
    position: absolute;
    width: 57px;
    height: 57px;
    top: 0;
    left: 0;
    border: 4px solid #fff;
    opacity: 1;
    border-radius: 50%;
    animation: loader 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
    transform-origin: 50% 50%;
}

.loader div:nth-child(2) {
    animation-delay: -0.5s;
}

@keyframes loader {
    0% {
        transform: scale(0%);
        opacity: 1;
    }

    100% {
        transform: scale(100%);
        opacity: 0;
    }
}