Drop down menu - Tab Menu 3
The Ocean blue tab menu usually uses for business websites. The drop down menu like this will give the viewers the sense of professional and reliable. When the DHTML menu item turns into light blue menu with round corner, it indicates that the menu item is selected, and its sub menu items will shown in the below line.
Drop Down Menu Builder - Sothink DHTML Menu
As a drop down menu tool, DHTML Menu provides rich templates and pre-set styles to clear out all painful design work. Seamless integrations with main stream HTML editors enable you to add menus to webpages conveniently. The menu appearance can be fully customized.