HTML (structure) - Page layout CSS (presentation) - InDesign has style-sheets as well but they are different in some fundamental respects. JS (behavior) - Usi

HTML (structure) - Page layout CSS (presentation) - InDesign has style-sheets as well but they are different in some fundamental respects. JS (behavior) - Using fundamental design rules a designer can have a measure of control over how the viewer "behaves". Dynamic white space, focal points etc. I think any print designer can be a good front end engineer if they have enough desire to do so.