.loading {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgb(0 0 0 / 30%);
    z-index: 1053;
}

.loader {
    left: 50%;
    margin-left: -3em;
    font-size: 10px;
    border: 0.6em solid rgba(218, 219, 223, 1);
    border-left: 0.6em solid rgb(0 0 0);
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
    transform: rotate(360deg);
}

    .loader, .loader:after {
        border-radius: 50%;
        width: 4em;
        height: 4em;
        display: block;
        position: absolute;
        top: 50%;
        margin-top: -4.05em;
    }

@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}