[JavaFX] javafx + CSS example

There are
java files under the folder src and css src under the project :

...

HostServices host = this.getHostServices();
String css = host.resolveURI(host.getDocumentBase(),"css/login_UI.css");
...

//根节点
AnchorPane root = new AnchorPane();
root.setId("root");//设置一个ID
...

// 去掉窗口修饰
primaryStage.initStyle(StageStyle.TRANSPARENT);
...

//引入CSS文件
scene.getStylesheets().add(css);

This java file inherits javafx.application.Application.
The file under CSS only writes the following:

#root{
    
    
    -fx-background-radius: 10;
}

You can set the rounded corners of the window.

It can be seen that the CSS file can directly decorate the javafx class