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What challenges did you encounter, and how did you overcome them?

As a newbie who is struggling with almost everything about coding, it took ages to complete this seemingly simple card... I feel so muddle-headed.

I tried so hard to find the way to make it responsive. I think it does response somehow, but I am not sure about the width of the card.

What specific areas of your project would you like help with?

As for the background solid shadow, I decided to use border-right and border-bottom. But the position is not quite right. Should I have used box-shadow property instead...?

Also, I have no clue how to apply black-colored pointer as a cursor, to be displayed when hovering. (sigh...)