Follow steps to learn how to create responsive layout with pure css. This resource tutorial is from Kevin Powell - conquering responsive layouts. It is totally free, and there is a community on discord that you can discuss lessons with some other learners.
- get starting to the simplest website with only html & css
width,max-width- css units, e.g.
vmin,vmax,vh,vw,em,rem,px,ch - flexbox
This website is deployed on Github pages by Github action. Learn how to use.
demo: site