how to style a prompt text of combobox in java FX application?

Question

I want to modify the css style of my combobox to reduce the text-size of its promptText.

How can this be done?

Answer 1

If you only want to change size of the prompt text, and not the other text, I don't think there is any way: there's simply no hook into the text node for the prompt text that distinguishes it from the displayed text.

You can change the color via a special css property:

.combo-box .text-field {
    -fx-prompt-text-fill: rgba(255, 0, 0, 0.5) ;
}
.combo-box .text-field:focused {
    -fx-prompt-text-fill: transparent ;
}

but I don't see any way to change any other style properties.