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This article introduces the relevant knowledge of "how to define and use the three styles of CSS". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

CSS styles are divided into: inline CSS style, embedded CSS style, external CSS style

inline css style

Inline CSS stylesheets are css code written directly into existing HTML tags:

This is a paragraph marker.

Take the style attribute. Scope applies only to this label.

This method is flexible, but it is troublesome to define the same style for multiple identical labels, which is suitable for local modification.

embedded CSS style

in HTML documents.

used in

The tag,, is called embedded.

/* Selector {Attribute: Attribute Value; Attribute: Attribute Value;}*/a{color:#FF0000 ;}#img1{width:800px;} /*id selector */.img2{ width:800px;} /* class selector */hyperlink

Add the head tag

Tags, uniform modification of multiple tags, range for this page. Novice note: if you encounter problems in learning can not find someone to answer, you can point me into the skirt, inside the big guy answer and web front-end intensive teaching. Cheng!

This method can set the style of a single page uniformly, but it is not flexible enough for local.

External CSS style

using

Labels. For example:

A. The CSS code is as follows

/* Selector {Attribute: Attribute Value; Attribute: Attribute Value;}*/a{color:#FF0000 ;}#img1{width:800px;} /*id selector */.img2{ width:800px;} /* class selector */

Introduction of CSS in HTML

hyperlink

External CSS style (also known as external style) is to write CSS code in a separate external file, this CSS style file with the extension ".css"(can also be used to call other website CSS).

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