.loader {
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #3F51B5; /* Indigo */
    border-radius: 50%;
    width: 120px;
    margin-top: 100px;
    height: 120px;
    margin:0 auto;
    animation: spin 2s linear infinite;
}

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

#myData_filter {
    right: 10px;
}