What you're thinking of is probably similar to foundation's interchange http://foundation.zurb.com/docs/components/interchange.html http://foundation.zurb.com/d

What you're thinking of is probably similar to foundation's interchange http://foundation.zurb.com/docs/components/interchange.html http://foundation.zurb.com/docs/components/interchange.html The images could've been compressed a bit with a tool like https://imageoptim.com/ https://imageoptim.com/ I'm seeing a little 20% (half a mb) could've been shaved off, but the bigger issue is the 1.7mb medium bundle js file. Not sure what that is, but it isn't minified all the way.