assigning className, hover does not work ?

http://86.61.66.17:8084/AgroZoo/testHTML/testHTML.jsp

please click on "add div" button. Can anyone tell me why hover works on black DIV and does not on newly created blue DIV ?

Thanks for help.

Inline styles will override embedded styles.

divNode.style.backgroundColor = 'blue';

Thanks for quick and accurate replay.