<div>
    <span></span>
    <span></span>
</div>

body {text-align: center;}

div {border: 2px solid #000; display: inline-block; padding: 5px 20px; vertical-align: middle;}

span:first-of-type:after {content: "|"; margin: 0 10px;}

$(document).ready(function (e) {
    showViewportSize();
});

$(window).resize(function (e) {
    showViewportSize();
});

function showViewportSize() {
    var the_width = $(window).width();
    var the_height = $(window).height();
    $('span:first-of-type').text(the_width);
    $('span:last-of-type').text(the_height);
}

$('#start').on('click', function(){

  var windowheight = $(window).height();
  var windowwidth  = $(window).width();
  $('.putmehere1').html('height: ' +
                         windowheight +
                         'width: ' +
                        windowwidth);

  var startwidth = 0;
  var endwidth = windowwidth;
  var startheight = 0;
  var endheight = windowheight;
  var timer;
  var timer2;

timedCount();
timedCount2();


function timedCount()
{
   startwidth = startwidth + 1;
   timer = setTimeout(function(){timedCount()}, 20);
   $('.putwidth').html(startwidth);
   if (startwidth == endwidth)
      {
       clearTimeout(timer);
       startwidth = endwidth;
       }
}

function timedCount2()
{
   startheight = startheight + 1;
   timer2 = setTimeout(function(){timedCount2()}, 20);
   $('.putheight').html(startheight);
   if (startheight == endheight)
   {
       clearTimeout(timer2);
       startheight = endheight;
    }
}

 });