Validator.w3 =link= Info

Using "border" on an image instead of using CSS.

Forgetting to tell the browser you are using . Unclosed tags: Opening a but forgetting the . validator.w3

If your code has open tags, missing attributes, or outdated syntax, the validator flags these errors so you can fix them. Why Code Validation Matters Using "border" on an image instead of using CSS

These are broken elements that should be fixed immediately to prevent display issues. Common Errors to Watch For or outdated syntax

Are you seeing a specific you don't understand?

These aren't critical errors, but they suggest improvements or mention deprecated features.