snippet to display responsive width

snippet.html

<div id="fqv" style="position:fixed;top:4px;left:4px;z-index:999;color:#fff;">
            <p style="font-size:12px;background:rgba(0,0,0,0.75);padding:5px;margin-bottom:1px;line-height:1.2;">
                <span id="window-width"></span>
            </p>
        </div>

snippet.js

$(window).load(function() {
      
      var $win = $(window);
      function update () {
       
        /*if($win.width > 768){
        }else{
        }*/
 
        $('#window-width').html('width: '+$(window).width()+'px');
        
      };

      update(); // call when the DOM is ready
        
      // Call when the viewport resizes:
      $win.on('resize', update);
});