a challenge to how we think about structuring our HTML, particularly to how we use containers. Elements can’t move from one container to the next. We can fake it with complex CSS, or we can rewrite the HTML with JavaScript; but, ultimately, if we want to intermix elements, we’re best of using fewer HTML containers to create columns. Instead, we should leave more of our content blocks in their own containers and use CSS to create virtual columns in the layout.
This solution doesn’t confine our elements to structural containers and instead enables us to more easily rearrange the elements in different layouts.