Learning outcomes
- Explain how to find nesting, attribute and structural errors.
- Complete the guided activity safely.
- Check that you can produce more reliable markup.
HTML in VS Code
HTML Validation and Problems
Learn to find nesting, attribute and structural errors and produce more reliable markup in this beginner-friendly Visual Studio Code lesson.
Before you begin
Use a non-sensitive practice folder, inspect unfamiliar code before trusting it, and never place passwords, tokens or private information in project files.
Step-by-step instructions
- Open the intended practice workspace in Visual Studio Code and confirm its folder name and Workspace Trust state.
- Correct deliberate problems in a practice document.
- Save the relevant files and review the Problems panel, terminal, Source Control view or browser preview as appropriate.
- Check filenames, relative paths, console messages, keyboard use, mobile layout and privacy before continuing.
- Confirm that you can produce more reliable markup, then create a clear commit, backup or saved checkpoint.
Ian's practical tip: Work in one named project folder, preview after small changes, read the actual error message and keep a recoverable version before broad edits.
Practical activity
Correct deliberate problems in a practice document. The expected result is to produce more reliable markup.