Why doesn't the media query work if I set a span?

Question

css

Instead of this:

@media screen and (min-width: 1000px){
    div { width: 1000px }
}

I'm trying this:

@media screen and (width >= 1000px){
    div { width: 1000px }
}

If in the first case everything is OK, then the second does not work. Why is that?

Answer 1

Because in the 2nd case - this is not a correct entry. You can't write more/less.