QR Code using Vue.js and Quasar Frameworks

Yes, in deploying on Github. I don't know how to deploy it since I used frameworks which are the Vue.js and Quasar Framework. It was different for the pure HTML and CSS when I was deploying on Github. But I figured out this and finally I deployed it on the internet for free hosting on Github. The languages I used was the framework of JavaScript and it was so easy to use to build this challenge which is the QR Code. I have a question about this challenge is can I used the CSS Flexbox for responsive and which CSS Flexbox should I used on this challenge since I used Quasar Frameworks instead of pure CSS?