Keep it Simple, Silly. Although you may build your e-commerce site from a desk, most shoppers will find your site on mobile.
Ease of navigation, clean and uncluttered pages, and succinct product descriptions improve the mobile experience and drive sales.
Optimize your menus to have as few items as possible. Menus that are too long can be hard to navigate. On the other hand, requiring the user to make too many clicks can increase bounce rates too.
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