Did you know that you can easily write comments in your CSS document? This can be very useful or just plain silly. It’s all up to you.
1. Open up your CSS document.

2. Type in /*

3. Type in the comment you want to use.

4. End the tag with */

It could look something like this:

#wp-calendar th {
font-style: normal;
text-transform: capitalize;
}
/* End Typography & Colors */