body  {
  margin: 0;
  padding: 0;
  background-image: url(dow.jpg);
   background-size: cover;
    background-repeat: no-repeat;
  }
  
#container {
  width: 500px;
  height: 500px;
  padding-top: 80px;
  margin: 0 auto;
  }
  
.dot { 
  width: 200px;
  height: 20px;
  margin: 30px auto;
  border-radius: 50px;
  }
  
.dot:nth-child(1) {
  background-color: #ff0000;
  animation: left 1.001s infinite ease-in-out ;
  }
  
.dot:nth-child(2) {
  background-color: #daa520;
  animation: right 1.001s infinite ease-in-out  ;
  }
  
.dot:nth-child(3) {
  background-color: #008080;
  animation: left 1.001s infinite ease-in-out  ;
  }
  
.dot:nth-child(4) {
  background-color: #ffa500;
  animation: right 1.001s infinite ease-in-out ; 
  }
  
.dot:nth-child(5) {
  background-color: #339933;
  animation: left 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(6) {
  background-color: #e6b800;
  animation: right 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(7) {
  background-color: #cccc00;
  animation: left 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(8) {
  background-color: #59b300;
  animation: right 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(9) {
  background-color: #000000;
  animation: left 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(10) {
  background-color: #000000;
  animation: right 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(11) {
  background-color: #000000;
  animation: left 1.001s infinite ease-in-out ; 
  }
  
  .dot:nth-child(12) {
  background-color: #000000;
  animation: right 1.001s infinite ease-in-out ; 
  }
  
@keyframes right {
  0% { transform: translate(-75px) ;}
  50% { transform: translate(75px) ;}
  100% { transform: translate(-75px) ;}
  }	
  
  @keyframes left {
  0% { transform: translate(75px) ;}
  50% { transform: translate(-75px) ;}
  100% { transform: translate(75px) ;}
  }