jQuery plugin to display size of window

$.fn.sizer = function(){
  var y = $(window).height();
  var x = $(window).width();
  $('#remove').remove();
  var append = '<span id="remove" style="position:fixed;bottom:15px;right:15px;background:#444;color:#ebebeb;padding:10px 15px;border-radius:1em;">';
  append += x + 'px || ' + y + 'px';
  append += '</span>';
  $(this).append(append);
}


$(document).ready(function(){
  $('body').sizer();
});

$(window).on('resize', function() {
  $('body').sizer();
});