/*.robert {background-color: red;}

@media (max-width: 1600px) {
.robert-c {background-color: red;}}

@media (max-width: 3840px) {
.robert-c {background-color: purple;}}
/* Desktop */
/*@media (max-width: 1920px) {
.robert-c {background-color: blue;}}
Laptop big */
/*@media (max-width: 1600px) {
.robert-c {background-color: yellow;}}
/* Laptop small */
/*@media (max-width: 1366px) {
.robert-c {background-color: green;}}
/* Tablet portrait */
/*@media (max-width: 1200px) {
.robert-c {background-color: pink;}}
/* Mobile */
/*@media (max-width: 767px) {
.robert-c {background-color: aqua;}}*/