rAF-1

HTML

<div id="box"></div>

CSS

#box{
  width: 50px;
  height: 50px;
  background-color: #000;
}

JavaScript

var element = document.getElementById('box');
var left = 0;
var rAF_ID;

rAF_ID = window.requestAnimationFrame( rAFCallback );

var rAFCallback = function(){
	element.style.marginLeft = (++left) + 'px';
  
  // cancel animation frame after 60px
  if( left == 60 ) {
    window.cancelAnimationFrame(rAF_ID);
  }
  else {
  	rAF_ID = window.requestAnimationFrame( rAFCallback );
  }
}