CSS basic style [1]

table of Contents

CSS (Introduction)

The relationship between HTML, CSS, and JavaScript

CSS syntax, inline style.

The comment in CSS is /* XXXX */    

Class selector,

Compound selector

Relationship selector

Compound selector, find the title in the P tag

Hyperlink pseudo-class

Pseudo-element

Selector weight

Document flow,

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CSS (Introduction)

CSS Cascading Style Sheets (English full name: Cascading Style Sheets) is a computer language used to express document styles such as HTML ( an application of Standard Universal Markup Language ) or XML (a subset of Standard Universal Markup Language). CSS can not only modify web pages statically, but also dynamically format the elements of web pages with various scripting languages. 

The relationship between HTML, CSS, and JavaScript

•    Structure, HTML is used to describe the structure of the page
•    Performance, CSS is used to control the style of elements in the page
•    Behavior, JavaScript is used to respond to user actions

The relationship between these three can be understood as HTML to describe a person is composed of limbs, head... CSS controls the external performance of the person, which is roughly yellow, black, and white. JavaScript plays the role of the person, how to walk, how to move

CSS syntax, inline style.

 

 

The comment in CSS is /* XXXX */    

Class selector,

Multiple classes are separated by spaces

 

Compound selector

 

Relationship selector

 

Compound selector, find the title in the P tag

Hyperlink pseudo-class

Pseudo-element

 

Selector weight

Document flow,

 

 

 

 

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