all my css class has the prefix class name .als to prevent css classname collision with other project, e.g.
.als .class1{};
.als .class2{};
I plan to use
rootPanel.addStyleName("als");
so that all element will has prefix css classname "als", and I can just use
textbox1.addStyleName("class1");
but I discover that in all PopupPanel, this is not true, the widget is PopupPanel will not has prefix css classname "als", so it is very trouble to add
.addStyleName("als");
in the first line of each PopupPanel.
Any method to let all widget in my application, including widgets in PopupPanel, will have css classname "als"?