My solution for QR code component

Unit Selection:

• Consider opting for rems (rem) instead of pixels (px) in properties like width, height, margin, padding, and font-size. Using rems provides better scalability and responsiveness, adapting to varying user preferences and device screen sizes. You can find more details in this article.

Illustrative Example:

/* Utilizing rem for enhanced scalability */
.container {
  width: 57.4375rem; /* Equivalent to 919px */
  font-size: 1rem; /* Equivalent to 16px */
}

@media Query Enhancement:

• Your existing @media query focuses on centering content through grid and place-items. However, there's an issue with the unit used for min-width in the body selector.
• Additionally, for improved responsiveness, consider replacing width with max-width for the main section.
• If display: grid; and place-items: center; are already in use for content centering, you can eliminate the min-width and margin properties.

Refined Code:

@media (min-width: 375px) { 
  body {
    min-height: 100vh;
    display: grid;
    place-items: center;
  }

  main {
    max-width: 350px; /* Opt for max-width for better responsiveness */
  }
}

These modifications aim to enhance your code's clarity, adaptability, and responsiveness.

I hope you find my feedback helpful. Please mark it as helpful if you do.