I'm creating a mobile version of plan comparison tool with 3 plans to compare. I'm having a hard time to find the way to anchor the top portion of the plan in place, so it serves as a reference, when the users scroll down and horizontally while looking through their details. I'm getting an error message " This element is inside the group where crop content is enabled. Fixed position property won't work in this case". Does anyone knows the workaround it? 

here is the pic: https://app.uxpin.com/edit/9069055/#?id_page=151754235