Debugging & Validation
All HTML topics∙ Chapter 49
Debugging & Validation
When HTML doesn't work, don't guess. Use debugging steps: validate HTML, inspect elements, and read console/network errors.
View Source
Check what HTML the browser actually received.
Inspect
See the real DOM and CSS. Great for layout issues.
Console
JavaScript errors show here.
Network
404/failed images, CSS, JS files appear here.
📝 Edit Code
👁 Live Preview
💡 Validate with an HTML validator to catch invalid tags and nesting.