.loading-dual-ring {
    display: flex;
    flex-direction: column-reverse;
    background: rgba(255,255,255,0.85);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 999999;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
}

.loading-dual-ring:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border-style: solid;
    border-width: 6px;
    border-color: #0081f3 transparent #00cb69 transparent;
    animation: loading-dual-ring 1.2s linear infinite;
}

@keyframes loading-dual-ring {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}