Client programming-CSS

1. How to add a style sheet to a webpage?
1) inline style <H1 style = "color: red;"> Hello 2) use <style type = "text/CSS"> H1 {color: red;} </style> in 3) in

2. Why is CSS a stacked style?
The concept behind a stacked style sheet is that multiple style definitions can cascade down to influence documents through multiple levels. the priority levels are as follows: 1. user browser settings 2. external style table 3. embedded style sheet 4. inline Style

3. What kind of selectors are available?
1. element P 2.id # top 3. class. name 4. attribute H [hittle] 5. contains selector and sub-object selector H1 B 6. wildcard selector * 7. pseudo class and pseudo element selector A: Link

4. Understand the Box Model
From the inside to the outside border (padding) border (Border) margin (margin)