You can set up an A/B test to show/hide an image on mobile devices by following these steps: 


1. Click on Campaign 


2. Go to 'Editor' tab: 



3. Navigate to 'HTML & CSS' Editor: 



4. Add the following string at the beginning of the HTML code: 


{% assign mobile_image_signup_share_page = "mobile_image_signup_share_page" | localize: "Show", "Hide" %} 



5. Find this piece of code: 


 <div class="content-mobile-image"></div> 


6. Replace that code with the following: 


{% if mobile_image_signup_share_page=="Show" %} <div class="content-mobile-image"></div> {% endif %} 



7. Save the changes 


8. Go to 'Editor' tab 


9. Navigate to 'Configuration' tab


10. Set up the A/B test: