What is the wrong in this code please help

Tell us what’s happening:

Your code so far

  body {
    background-color: rgb(0,0,0);

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Linux; Android 7.0; Redmi Note 4 Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.137 Mobile Safari/537.36.

Link to the challenge:

use only background:rgb(0,0,0);

Uhm, what’s the issue you’re experiencing? I tried it and it worked (both ways)^^