Wordpress custom css in menu to show image when there will be sub-menu

Wordpress custom css in menu to show image when there will be sub-menu

References

Reference NO 1

http://stackoverflow.com/questions/13658361/wordpress-custom-css-in-menu-to-show-image-when-there-will-be-sub-menu

Reference NO 2

http://wordpress.org/support/topic/arrow-indicators-on-nav-menu-dropdowns

Reference NO 3

http://cssmenumaker.com/blog/wordpress-3-drop-down-menu-tutorial

Reference NO 4

http://wpmu.org/wordpress-menu-images/

Reference NO 5

http://wpmegamenu.com/help/

Reference NO 6

http://www.revisionheat.com/wp-content/plugins/wp-uber-menu/help/help.html

Reference NO 7

http://en.forums.wordpress.com/topic/customizing-mobile-site

Reference NO 8

http://diythemes.com/thesis/rtfm/styling-thesis-wordpress-nav-menus-css/