Contempt of court

What is contempt of court? Read this article.

My view
I have always thought that contempt of court is to disobey a judge's instruction in court. It seems now to have been extended outside of the court room.
To be sure that I was not wrong, I checked for the definition in Google. I found this article in Wikipedia, which confirmed my understanding. Are we practicing law differently from what is generally understood in the developed world?