A brief introduction to css

What is css and its development history

Quick start and advantages of css

Four ways to import css

Three basic selectors

Hierarchy selector

Structural pseudo-class selector

attribute selector

The role of css and font style

text style

Text-shadow and hyperlink pseudo-classes

List style exercises

Background image application and gradient

Box model and border usage

Internal and external margins and div centering

Rounded borders and shadows and experience sharing

display and float

Overflow and parent border collapse issues

The use and practice of relative positioning

Block positioning exercises explained

Absolute positioning and fixed positioning

z-index and transparency

Animation and horizon expansion

css summary