I'm new with javafx, and i don't know how to fix my problem with my css code to make my BarChart component transparent through background. Any solution will be appreciated.

Here my css code:

```
.chart{
    -fx-background-color: null; 
    -fx-alternative-column-fill-visible: false;
    -fx-alternative-row-fill-visible: false;
    -fx-content-display:bottom;
}
.axis {
    -fx-tick-mark-visible: false;
    -fx-minor-tick-visible: false;
    -fx-minor-tick-length: 0;
}
.axis-label {
    -fx-text-fill: null;
}

```

Image of output:

![](https://i.stack.imgur.com/lP3rM.png)