how to set proper media queries for smartphones code example

Example 1: media query for mobile view css

@media only screen and (max-width: 600px) {
  body {
    background-color: lightblue;
  }
}

Example 2: iphne media query csss

@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px)  { /* STYLES GO HERE */}