css how to write media queries code example

Example 1: media query in css

@media screen and (min-width: 374px){
   section#rent_sectionn {
    padding: 0 20px !important;
}
 }

Example 2: media query

@media only screen and (max-width: 800px) {
  body {
    background-color: ; /*your color*/
  }
}