With the 3.6 update, you can now build Responsive Layouts directly in InDesign and export with in5.

Alternatively, you can display a different layout in your WordPress post, depending on the device.

Here are the basic steps.

  1. With in5, you can choose from Alternate Layouts (created in InDesign) in the Range field and export them as separate HTML documents.
  2. Upload each of the documents and place them in your post using the in5 Embed Plugin for WordPress.
  3. Use a shortcode plugin, like this one, to show different layout(s) on mobile devices.