QR code component

Hello Trung, You have done a good work! 😁

Some little tips to improve your code:

• add main tag and wrap the card for improve the Accessibility
• also you can use article tag instead of a simple div to the container card for improve the Accessibility
• add descriptive text in the alt attribute of the images
• remove all unnecessary code, the less you write the better as well as being clearer: for example the div container of image
• instead of using px use relative units of measurement like rem -> read here

Keep learning how to code with your amazing solutions to challenges.

Hope this help 😉 and Happy coding!