Web Designer - Product Screenshots. Media Queries. HTML5 - Responsive Web Design. It all started with Responsive Web Design, an article by Ethan Marcotte on A List Apart.
Essentially, the article proposed addressing the ever-changing landscape of devices, browsers, screen sizes and orientations by creating flexible, fluid and adaptive Web sites. Instead of responding to today’s needs for a desktop Web version adapted to the most common screen resolution, along with a particular mobile version (often specific to a single mobile device), the idea is to approach the issue the other way around: use flexible and fluid layouts that adapt to almost any screen. Core Concepts Three key technical features are the heart of responsive Web design: