What I need to do is: If the page size (not the screen size) is more than 2400px, then the table width is 50% else is 100%.
@media only screen and (min-width: 2300px) and (max-width: 2500) {
    .tblMemberInfo {
        width: 50%;
    }
}
I tried using the CSS above but it is not working.