A basic and properly structured HTML/CSS drop down menu can serve you just as well. In fact, it may make your site appear more responsive to not use animations and instantly display the menu instead.

HTML forms enable you to add a selectable list to your site. HTML form items like drop-down menus enable you to add dynamic functionality to your Web pages using JavaScript.

If you know a little bit about HTML, CSS, and JavaScript you're already well equipped to create a Safari extension. Since Apple's documentation can seem intimidating, here's a tutorial to walk you ...