#idor.class{    
  animation: example 4s infinite
}

@keyframes example {
  0%   {background-color:red; left:0px; top:0px;}
  25%  {background-color:yellow; left:200px; top:0px;}
  50%  {background-color:blue; left:200px; top:0px;}
  100% {background-color:red; left:0px; top:0px;}
}