.alc-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    display: flex;
    z-index: 9999;
}
  
.alc-loading > div {
    margin: auto;
}

.alc-dnone{
    display: none;
}