Qr code component

This is good job, the page is visually similar to the layout. I can also propose some improvements.

1. You should replace <div class="container"> with <div class="wrapper">
2. There are problems with inners. Them some different from those on the layout.
3. Image size must be 288, not 290.
4. The design does not look good on a 320px screen (small mobile devices). Adaptive design can fix it.