What should a layout designer know?

Question

Layout

What should a layout designer know?
What technologies, languages ​​and frameworks do you need to learn to become a good coder and take freelance orders?

Answer 1

Layout designer or frontend (html, css):
- CSS/CSS3
- HTML/HTML5
- Responsive
- Crossbrowser
- BEM
- SASS/LESS/PUG
- Gulp/Webpack
- Git
- Bootstrap3/4 + other CSS frameworks
- Basic knowledge of working with PS, Ai, Sketch files
- native js
- ES 5/6
- Javscript frameworks (Vue, react, angular)
- ...
Check layout sheet , although 2011, but for many it is still true.

Answer 2

First of all, the typesetter must be able to typeset. No technology or framework provides this skill automatically.

Answer 3

Everything as usual: HTML5, CSS3, JS (ECMAScript 5: can-i-use , wiki )