Dear deenic48,
Greetings from team eBay!
The first thing to do is to make sure you're taking advantages of all eBay features that are designed to create effective listings. Then, you can optimize your listings for viewing on mobile devices.
To learn more about how to create mobile-friendly listings on eBay, go to : http://pages.ebay.com/sell/itemdescription/mobilefriendlyguidelines.html
To know more about listing and the best practices, visit our seller center:
https://sellglobal.ebay.in/seller-center/create-the-perfect-listing/
Regards,
eBay INCBT Team