.preloader {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: black;
    z-index: 4;
    transition: 0.5s all;
    opacity: 1;
    visibility: visible;
}

.loader {
    width: 75px;
    height: 75px;
    border: 5px solid white;
    border-radius: 50%;
    border-top-color: red;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: 1.5s spin infinite linear;
}

.loader_description {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, 200%);
}

.done {
    opacity: 0;
    visibility: hidden;
}


@keyframes spin {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@media (max-width: 1199px) {
    .loader_description {
        top: 53%;
    }
}