.lds-dual-ring {
    display: inline-block;
    width: 80px;
    height: 80px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.lds-dual-ring:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border: 6px solid #27ae60;
    border-color: #27ae60 transparent #27ae60 transparent;
    animation: lds-dual-ring 1.2s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.lds-dual-ring {
    display: inline-block;
    width: 80px;
    height: 80px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.lds-dual-ring:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border: 6px solid #27ae60;
    border-color: #27ae60 transparent #27ae60 transparent;
    animation: lds-dual-ring 1.2s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.content {
    display: none;
}
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}