Front-end development environment

Basic principles of how a website works

The relationship between html and http

HTML basic terminology and document structure

HTML common tags

HTML common tags 1

HTML common tags 2

Commonly used tags 3

CSS introduction and import

Introduction to style rules and box model 1

Introduction to style rules and box model 2

Box model example explanation

Commonly used selectors (Part 1)

Commonly used selectors (Part 2)

background control technology

Padding and element centering techniques

Collapse transfer and extrusion of margins

Floating and positioning principles

Positioning practical small cases