I create a new project and design the main window used by my PC that the OS is Windows 7.It's running completely normal and correct.
When I copy it and the JRE to another PC,the main window display will be deformed,and the OS of this PC is Windows XP. I try to set display monitor to the same DPI and the same display resolution,but can't solve the issues.
I'll attach two image a moment later or you can view the link at the end,the image is the screenshot of the main window in my project.one is the screenshot in Windows 7, another in Windows XP.
You can find that the Button and ToggleButton become higher when it running at Windows XP. And the window decoration display incomplete,missing minimize and maximize button(but it can be work when I click it position used by mouse).

the screenshot at Windows 7 you can view:http://photo.163.com/rql1986/#m=2&aid=55231305&pid=8410653163
the screenshot at Windows XP you can view:http://photo.163.com/rql1986/#m=2&aid=55231305&pid=8410653224

Note that all the UI designed by JavaFX Scene Builder 1.1 and CSS file.

Hello, all guys
It's my fault, It caused by computer monitor and this is not a bug of JavaFX8.