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After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Hands down that CSS is the preferred way make dropdown menus. Google and on a lesser note, other search engines, have improved drastically with their ability to parse JavaScript / jQuery, and you may be able to get away with it, but it really should be avoided if possible. With the "new" CSS3 styles, you get almost any style you'd like with that.