JavaFX - Display background of a disabled Label

With JavaFX, I would like to display a Label with a defined background color (when disabled, my Label's background becomes transparent), and I tried the code below, but that still doesn't work... Have you some tips for me? - Another thread told me to do a setEditable(false), but this approach isn't appropriated in my case.

FXML:

<Label styleClass="disable_backgrounded" layoutX="32.0" layoutY="23.0" prefHeight="25.0"
       style="-fx-background-color: rgb(252,252,252);-fx-padding: 5px;" text="General" textFill="#aa0000">
           <font>
                <Font name="System Bold" size="14.0"/>
           </font>
</Label>

CSS:

.disable_backgrounded:disabled {
    -fx-background-color: rgb(252,252,252);
}