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What is Mobile-First?
A design approach that starts with the mobile version and then adds enhancements for larger screens
Why It Matters
Mobile-first ensures your site works well on phones, where constraints are tightest and traffic is highest
Real-World Example
Designing the phone layout first, then adding extra columns and features for tablet and desktop
“Understanding terms like Mobile-First matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
From definition to deployment
Knowing the term is step one. Using it in something real is the rest.