#chartContainer .chart-loader {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(255, 255, 255, 0.75);
}

#chartContainer .chart-loader div {
    position: absolute;
    width: 30px;
    height: 30px;
    margin: auto;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}