div.nxs-background-overlay {
    background-color: rgba(0, 0, 0, 0.6);
    position: fixed;
    overflow: hidden;
    z-index: 10001;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    text-align: center;
    display: none;
}

div.nxs-background-overlay div.nxs-loading-message {
    color: white;
    font-size: 30px;
    position: relative;
    text-align: center;
}

div.nxs-main-loader {
    border: 10px solid #f3f3f3;
    border-radius: 50%;
    border-top: 10px solid #3498db;
    width: 90px;
    height: 90px;
    margin: 150px auto 80px auto;
    margin-top: 35vh;
    -webkit-animation: spin 2s linear infinite;
    /* Safari */
    animation: spin 2s linear infinite;
}
@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

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