In this video, I break down HTML indentation—one of those “small details” that makes a huge difference when you’re writing real projects. Indenting isn’t a requirement in HTML5, but I strongly recommend it because it improves readability and helps you understand the structure instantly, especially when your layout gets complex. I explain indentation as simply adding whitespace at the start of a line to show nesting, so you can clearly see parent-child relationships (like a div as the parent and a p inside it as the child). I also cover why indentation matters for maintainability and debugging. When your code is properly indented, it’s much easier to scan, spot where elements open/close, and identify which elements belong together. Since HTML doesn’t enforce strict rules, I share a common practice: using two spaces per level, and I point out why spaces are more universal across editors. Finally, I go over practical tips and common mistakes. The big ones are not indenting at all and using inconsistent indentation—both make large pages harder to work with, especially in teams. My takeaway: pick a style, stay consistent, and use an IDE/editor with automatic indentation to keep your HTML clean and easy to modify.