[baby]

I was going to post the same. I think the learning has to be split in three components:

* CSS: learn how to use flexbox and grids, the rest will follow.

* HTML5: this is pretty straight forward to learn IMO, maybe someone has a good resource? (that does not talk about JS at all preferably)

* JS: This one is tricky, if you really want to learn more about JS it is its own big world. Two advice I would give: learn the latest JS version and use a transpiler. The most popular framework seems to be React, so learn how to use that.

[franciscop]

http://html5doctor.com/ is a great resource for semantic HTML5

[scottmf]

Simply use create-react-app and don’t worry about setting up Babel and Webpack

[baby]

Looks promising https://github.com/facebookincubator/create-react-app !

That's the one part of the stack I still need to learn (becuase jQuery is not trendy anymore apparently)