Problème taille des colonne et des lignes

Hi,
To make your grid row element sticky you can use the same script that was given in another thread:

function custom_collant_script() { ?>
    <script>
window.addEventListener('DOMContentLoaded', function() {
(function($){
  $(function() {       
     var scroll_start = 0;
     var startchange = $('.avia-section.collant');
     var offset = startchange.offset();
     var width = $(window).width()
      if (startchange.length){
     $(document).scroll(function() { 
        scroll_start = $(this).scrollTop();
        if((width >= 990) && (scroll_start > offset.top - 117)) {
          document.querySelector('.avia-section.collant').classList.add('sticky-top');
         } else {
          document.querySelector('.avia-section.collant').classList.remove('sticky-top');
         }
     });
      }
  });
})(jQuery);
});
</script>
    <?php
}
add_action('wp_footer', 'custom_collant_script');

I added this custom class to the grid row for you avia-section collan

and now the grid row sticks near the top, the only thing is that this function sticks 117px from the top because on the other page you had a sticky header, but for product pages it looks like you want to remove the sticky header, is this correct or are you going to use a sticky header on your product pages too?

Best regards,
Mike