JavaFX ScrollPane如何设置透明背景

Question

I can not set transparent background in scrollpane . Probably because it contains anchorpane , and that anchorpane contains buttons? White background from scrollpane and red from anchorpane :

Answer 1

Set an id to your AnchorPane in the fxml and then in your css assign the id to -fx-background-color : transparent.

Hope this works.

if not Please Refer to this question

JavaFX ScrollPane border and background

Answer 2

You have to use css and like this:

---

.scroll-pane{
   -fx-background-color:transparent;
}

---

and(cause ScrollPane has a Viewport )

.scroll-pane > .viewport {  //not .scrollpane but .scroll-pane
   -fx-background-color: transparent;
}

or

.scroll-pane .viewport {
       -fx-background-color: transparent;
}

If it doesn't work,either you have not defined externall css file well,or you have added some kind of container into the ScrollPane which has also a default background color.