How to remove the line between Dialog title and Dialog Body?

When calling Dialog.show("title", "text", "ok", "cancel") then in runtime there is a line break between the Dialog title and its body. How to remove this line br开发者_运维百科eak because the Dialog is not very pretty to look ?

Set the DialogTitle border to empty on ResourceEdit. Also you can set the DialogContentPane border to empty on ResourceEdit.