Can a site be wider than 1920px?

Question

css

I understand correctly that the site needs to be typed from 320px to 1920px and then the screens are already adjusted?

Answer 1

Generally it can.
Another question is what percentage of users with large screens, and whether they should be taken seriously or is it enough.

.content {
  max-width: 1920px;
  margin: 0 auto;
}

Answer 2

A good question, actually. 4k monitors are gaining popularity, and we already have two clients in the last couple of months who have ordered sites with adaptation for 4k. In the first case, the designer rebuilt the blocks, in the second, he stupidly doubled everything (the designers were different :)). I haven’t done the second one yet, but I feel that there will be a lot of hemorrhoids, because. I'm not typesetting from scratch, but I'm rewriting what's already done.
So yes, the site could very well be wider than 1920.