Then using inspect element add break points with xl:

This will automatically make your site mobile, tablet, and pc friendly

That's mostly it lol, add a max width of 1200px to the content and you support xxl and tv screens

yea, do what Arinji says. He's right. Normally when developing an app, you start mobile first, to have it minimal and desktop is bigger, so you can just add optional stuff

yea, do what Beef says. He's right. But the pc first or mobile first depends on you :))

And just resize width and height with inspect element and fix anything as you notice

Thanks!

Happy to help