Links to physical pixels, device independent pixels, etc.

This pixel is not that pixel 

https://www.w3cplus.com/css/A-pixel-is-not-a-pixel-is-not-a-pixel.html

 

Responsive User Interface

https://developers.google.com/web/fundamentals/design-and-ui/responsive/?hl=zh-cn

 

 

Resolution of screen resolution, device independent pixels and CSS pixels, etc.

https://lingdaoganbu.wordpress.com/2016/06/08/%E5%B1%8F%E5%B9%95%E5%88%86%E8%BE%A8%E7%8E%87%E8%AE%BE%E5%A4%87%E7%8B%AC%E7%AB%8B%E5%83%8F%E7%B4%A0%E5%92%8Ccss%E5%83%8F%E7%B4%A0%E7%AD%89%E8%A7%A3%E6%9E%90/

 

Mobile phone adaptation solution

https://sallypanda.gitbooks.io/html5/content/wait/lesson2.html