Here’s an example of multiple-line C-style comments:
/* This is a comment */
/* C-style comments can also span to
as many lines as you'd like,
as this sentence is showing here. */
This type of comment begins with
and continues up to the next line break –
// This is a one-line comment!
of HTML comments (-->).
<!-- It works just like a comment beginning with //
<!-- --> of HTML comments
It’s advised however to use HTML comments rather than // comments so that the code is hidden from older or outdated browsers.