Hi Bernard,
Please email me at andrew@writeonweb.com - I can help you in many different ways as I'm a full stack web application developer (HTML5, CSS3, JavaScript, Shopify Template logic customizations, Data design and management, etc). I'm a Shopify Partner, with extensive experience in the Shopify platform and cross device and browser display issues. I can navigate any custom development code relatively quickly, and help you in the long term as well beyond display issues including data, customizing or enhancing Shopify template logic, JavaScript, etc.
Sincerely,
~Andrew (Seattle based :-)