How to customize style in JSF 2?

How to customize <h:messages/> style in JSF 2?

References

Reference NO 1

http://stackoverflow.com/questions/13633130/how-to-customize-hmessages-style-in-jsf-2

Reference NO 2

http://stackoverflow.com/questions/4987922/jsf-2-0-custom-messages

Reference NO 3

http://www.mkyong.com/jsf2/customize-validation-error-message-in-jsf-2-0/

Reference NO 4

http://www.java-tutorial.ch/java-server-faces/jsf-2-exception-handling-and-formatting

Reference NO 5

http://www.ibm.com/developerworks/library/j-jsf2fu0111/

Reference NO 6

http://www.jsftoolbox.com/documentation/help/12-TagReference/html/h_messages.html

Reference NO 7

http://www.coderanch.com/t/211313/JSF/java/JSF-validation-messages-customize

Reference NO 8

http://blog.ropardo.ro/2010/06/22/adding-error-messages-in-jsf/