.basic-loader {
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
    display: none;
    position: relative;
    top: 40%;
    left: 40%;
    border: 4px solid #f3f3f3;
    border-radius: 50%;
    border-top: 4px solid #3498db;
    width: 50px;
    height: 50px;
}
.basic-loader-wrapper {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
}

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

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