We can affect the scroll bar of an HTML element through the overflow CSS property.
Is it possible to affect the scroll bar of the browser window?
Motivation – I am resizing HTML elements in code when the window is resized. During the resize two scroll bars are visible – the one of the window and the one of the particular HTML element. When the resizing ends only one scroll bar remains – that of the element, so everything is fine. But during the resize it looks ugly.
You can see it here – http://jsfiddle.net/mark69_fnd/DaYCa/9/:

Yes, it’s possible — just use
body { overflow: hidden; }. You can test it out easily on this page from Firebug by running$("body").css("overflow", "hidden");.