Promo Banner on Website with jQuery and Cookies

Website Sticky Promo Banner Bar for E-Commerce Website. Its has to disable/Close once it’s click on it.

Code examples conditional jQuery mobile / iPad / screen

Conditional jquery for full screen only, Min screen width 768 px 
if ($(window).width() > 767){
//your code
}

Conditional jquery for mobile and smaller devices only, Max screen width 768 px 
if ($(window).width() < 768){
//your code
}

Conditional jquery for iPad and full screen only, Min screen width 960 px
if ($(window).width() > 960){
//your code
}

Conditional jquery for older, smaller devices and screens, Max screen width 479 px
if ($(window).width() < 479){
//your code
}

Setting the Cookies

Reference https://www.electrictoolbox.com/jquery-cookies/

if ($('.promo_banner').length){
       var promo_banner = Cookies.get('promo_banner');
       console.log(promo_banner);
       if (promo_banner != 'dismiss') {
           $('body').addClass('promo_banner-show');
           if ($(window).width() < 768){
               $(".header_desk_mobile").css({'top':'30px'});
           }
           $('.promo_banner').on('click', '.promo_banner-close', function(){
               $('body').removeClass('promo_banner-show');
               if ($(window).width() < 768){
                   $(".header_desk_mobile").css({'top':'0'});
               }
               Cookies.set('promo_banner', 'dismiss', { expires: 30 });
           });
       }
   }