.loader-nb-spiner {
    width: 75px;
    height: 75px;
    margin: 0;
    background: transparent;
    border-top: 4px solid var(--theme-color-widget-active,#df1b1b);
    border-right: 4px solid transparent;
    border-radius: 50%;
    animation: 1s spin linear infinite;
}