Assessment needed Fundamental CSS comprehension

MDN Learn
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Hello everyone, here is the assignment Fundamental CSS comprehension - Learn web development | MDN (mozilla.org)
and this my attempt.

A Pen by Cleo (codepen.io) I am stuck at the level of uploading the article image . Can someone explain to me what to do ?

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Hi @Cleo_Shepsut

That’s the same CodePen as in the other post, right?
You should only post your work in one place and post further replies there.

Thanks! :slightly_smiling_face:
Michael

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I still don’t master this operation well , sir ,so, I am always vulnerable to mistake and out of rules. I am sorry for that .Could you please help point out my mistakes here ? A Pen by Cleo (codepen.io)