Is there a way to define regions in CSS file just like regions in C#?

Like in C# you define regions as follows

#region My Region
//your code here
#endregion

My problem is I don't want to use separate CSS files for my asp.net project but I also want to organinze so I can define specific sections like one for Master Page CSS and one for FormUser and so forth so it is easy to troubleshoot when needed. Is it possible?

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