QR Code Component

These were the questions that accompanied my original submission. They were answered but the more the merrier I say. Thanks!

Question 1: I set the dimensions of the component card using pixels like so: width: 320px; height: 496px; I think I was worried if using fixed dimensions it wouldn't be truly responsive. Is that a misconception or would it be more appropriate to use a different unit like percent or rem instead of px?

Question 2: Did I successfully build it? I was surprised that the dimensions were the same for both the mobile and desktop versions. Did it just work out that way or have I made a mistake?

Question 3: Other than adding an alt tag to the image, I wasn't sure what other accessibility features I could include. Please let me know if I missed any - I'm still just learning the basics of accessibility.

Thank you in advance for your time and feedback. This is my first submission to Frontend Mentor.