Untitled

<!DOCTYPE html>
<html>

<body>

<p>
<button onclick="myMove()">Click Me</button>
</p>

<div id ="container">
<div id ="animate"></div>
</div>

<script>
function myMove() {
  var elem = document.getElementById("animate");
  var pos = 0;
  var id = setInterval(frame, 5);
  function frame() {
    if (pos == 350) {
      clearInterval(id);
    } else {
      pos++;
      elem.style.top = pos + 'px';
      elem.style.left = pos + 'px';
    }
  }
}
</script>

</body>
</html>