What are the three application methods of css cascading style sheets

CSS cascading style sheet is a language used to control the style and layout of web pages and has a wide range of applications. In CSS, there are three application methods, namely inline style, internal style and external style. The following will introduce you to these three application methods in detail, with specific code examples.

1. Inline Style:
   Inline style is to write the CSS style directly in the style attribute of the HTML element. This style of styling only applies to the defined HTML element and has the highest priority.

Sample code:

<p style="color: red; font-size: 20px;">这是一段内联样式的文本。</p>

2. Internal Style:
   Internal style is to write the CSS style in the tag of the HTML document. Defined through the