Where to write css: 1. As an inline style, write it in the style attribute of the HTML tag; 2. As an inline style, write it in the style tag of the head tag; 3. As an external style, write it In a separate ".css" file, use the link tag or "@import" rule to introduce it into HTML.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

There are three types of css styles: inline CSS styles, inline CSS styles, and external CSS styles (outline styles).

1. Inline CSS style

Use the style attribute in the HTML tag to set the css style

Format:

Example:

Features: Only applies to this tag.

2. Embedded CSS style

Use the style tag in the head tag to set the css style

Format:

Example:

Features: Applies to the entire current page

3. External CSS style (outline style)

Write the css code in a In a separate ".css" file

Introduce the file into the page using the link tag or @import

Example:

Learning video sharing: css video tutorial

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