#ajax-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999998;
    background-color: rgba(0, 0, 0, .7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}