Skip to main content

HTML Guide

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Malformed comment syntax has been found, check out the affected comment.

, as in this example: ```html <!-- Good comment --> <!-- Comments can be multi-line --> ``` A common cause for a malformed comment is using too many hyphens (-`) as in this example: html <!-- Wrong comment -->

Related W3C validator issues