body{
  background-image: url('bg.png');
  background-repeat: repeat;
  background-size: 140%;
  color: white;
  align-items: center;
  min-height: 50px;
  text-align: center;
  animation: right 10s linear infinite;
}
@-webkit-keyframes right {
     from {
        background-position: 45% 0%;
    }
    to {
        background-position: -50% 0%;
     }

    }