While checking content for accessibility, it makes sense to also check to make sure that you've set your content up within the standards of responsive design. A page or element that's been designed responsively will scale appropriately for whatever device is used to view it. Platforms like Springshare use code that does this for you, but if you add content incorrectly, that can break the built-in responsiveness. For example, if you add an image that has a hard-coded width dimension, it won't scale down properly if someone looks at that content on a phone.
Best practices for responsive design include: