<svg width="500" height="350">
  <circle id="orange-circle" r="30" cx="50" cy="50" fill="orange" />
  
  <animate 
           xlink:href="#orange-circle"
           attributeName="cx"
           from="50"
           to="450" 
           dur="2s"
           begin="0s"
          repeatCount="indefinite"
           repeatDur="01:30" 
           fill="freeze" 
           id="circ-anim"/>
  
  
</svg>

svg {
  border: 3px solid #eee;
  display: block;
  margin: 1em auto;
}
p {
  color: #aaa;
  text-align: center;
  margin: 2em 0;
}