Sir didn't understand how color is being applied in this

https://jsfiddle.net/52nreczb/
Please explain how bg color is being applied in this.

Here you are having nested divs each having a class box providing the property of margin to each div it is assigned to
after that via css using background-color attribute having diff. colors for each of the div is assigned

Is it clear to you ?

Yes Sir.
Sir One More doubt, I do’t understand the Transform completley from the videos.
Can you please tell me any other source, Jisse clear hojaaye Transform and other properties.

Okay for it you can refer to mdn docs if still you are facing any problem for the same we can pick it up in the next live doubt session

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