#cover-spin {
    position:fixed;
    width:100%;
    left:0;right:0;top:0;bottom:0;
    background-color: rgb(39 40 40 / 78%);
    z-index: 999999;
    display:none;
}

@-webkit-keyframes spin {
    from {-webkit-transform:rotate(0deg);}
    to {-webkit-transform:rotate(360deg);}
}

@keyframes spin {
    from {transform:rotate(0deg);}
    to {transform:rotate(360deg);}
}

#cover-spin::after {
    content: '';
    display: block;
    position: absolute;
    left: 48%;
    top: 40%;
    width: 50px;
    height: 50px;
    border-style: dotted;
    border-color: #fdfeff;
    border-width: 8px;
    border-radius: 50%;
    -webkit-animation: spin 0.2s linear infinite;
    animation: spin 2s linear infinite;
}