QR code card with HTML and CSS

hey, really nice one for submitting the challenge.

i do have some comments though, i hope that's okay.

• i notice you used flexbox. although, your card isn't centered. you can add this to make the page a full page and place the card at the center.
• i also noticed you didn't use the specified font in the style-guide.md. you can do that by opening the file inside your text editor then follow the link to google fonts.

body  {
width: 100%; 
min-height: 100vh; 
display: flex;
justify-content: center;
align-items: center;
}