Responsive QR Code Component

Hello, your code is well written. As for how to do CSS resets more simply, I don't think there is a simpler way to do it. But if you fond another way to make it simply, please can you share it ? And flex is the simplest way to center a div.

Your Html is quite semantic but the classes names, I find them a little disorganized and non-specific, have you ever tried to learn the formatting of class names?

For SEO you should have an H1 for the title because it will be more referenced.

Best wishes.

I prefer to use this method to center container vertically & horizontally

body {
  display: grid;
  place-content: center;
  margin: 0;
  min-height: 100vh;
}