At yesterday’s Multipack, I gave a presentation on a technique to use WordPress featured image functionality to send different sized image files to different devices – i.e. true responsive images.
This technique uses three things:
- a plugin called mobble
- a few lines of php
- WordPress featured images
I used a test site to demonstrate the technique and it also includes a full description of how to do it and the code.
This technique has its downsides and I’m hoping to develop a plugin that does this job more neatly and with more than one image per page/post – thanks to those of you at Multipack yesterday who gave some tips to help with that process!


