The statements in your CSS code that the compiler ignores and doesn't execute are known as comments. The code is explained via comments. They improve the program's readability and comprehension.
A comment may be one or more lines long. Both single-line and multiline comments can be made using the
/* */ comment syntax. For earlier browsers, we can hide using the syntax
<!- ->, however this is no longer advised. It's a good idea to include comments in your code because they can make it easier to understand if someone reads it or if it's later reviewed.