Term: Mobile-First 

Definition of "Mobile-First " by Sutherland Shire Web Design: "Mobile-First" is a design strategy or approach in web development where a website or an application is designed for mobile devices first and then scaled up to larger screens like desktops or tablets. This approach is based on the idea that it's easier and more efficient to start designing for the smaller screen and work your way up. It prioritizes the needs and constraints of mobile users, ensuring the website or app is optimized for mobile viewing and interaction. This is particularly important considering the increasing prevalence of mobile web browsing in today's digital landscape.