Building Responsive sites.

The "Liquid" Mindset: Breaking the habit of thinking in fixed pixels. Adopting fluid grids and percentage-based layouts ensures that your design adapts like water to the container, rather than breaking when the screen size changes.

Breakpoints by Content, Not Device: Stop setting media queries for specific devices (like "iPhone 15 width"). Instead, insert a breakpoint only when your content starts to look bad or break, ensuring your site is future-proof against devices that don't exist yet.

Flexible Media is Non-Negotiable: A responsive grid is useless if a fixed-width image breaks it. Implementing max-width: 100% on images and videos ensures media scales down within its parent container, preventing horizontal scrollbars.

Relative Units (REM/EM) vs. Pixels: Why hard-coding font sizes and padding in px hurts accessibility and scalability. Using relative units like rem respects the user's browser settings and allows the entire interface to scale proportionally.