What is responsive web design and why is it important for SEO and UX?

Responsive web design means your layout and typography adapt to different screen sizes and orientations using flexible grids, media queries, and scalable assets. It improves user experience, reduces pinching and zooming, and supports SEO signals that reward usable mobile pages. The goal is a single codebase that works well on phones, tablets, and desktops, with focus management and legible type at real reading distances.

@media (max-width: 600px) {
  .page { padding: 12px; }
}

Start simple: try this concept in a tiny project before moving to advanced tools.