How to use @charset rules

In CSS, the @charset rule is used to specify the character encoding used in the style sheet; it must be the first element in the style sheet. If multiple @charset rules are defined, only the first one will be used. The following article will introduce you to the @charset rules. I hope it will be helpful to you.

CSS @charset rules

@charset rules must be at the beginning of the style sheet, not before it Any elements (characters), not even comments.

After "@charset", specify the name of the character encoding (in quotes). For example:

@charset "utf-8";

Note: The @charset rule cannot be used in the

Syntax:

@charset "字符集名";

Description The character set name is case-sensitive, but for new style sheets it should always be UTF-8. It must be the name of a web-safe character encoding defined in the IANA registry.

Browser support:

All major browsers support @charset rules, such as: Google Chrome 2.0, Internet Explorer 5.5, Firefox 1.4, Safari 4.0, Opera 9.0

Simple example of CSS @charset rules

Example 1: The following @charset declaration indicates that the stylesheet uses ISO-8859-15 character encoding:

@charset "ISO-8859-15";

Example 2: The following list describes incorrect character set encodings:

@charset 'iso-8859-15'; /* 使用了错误的引用样式，因此它无效*/
@charset  UTF-8;   /* 无效，因为字符编码名称未包含在引号中*/
@charset  "UTF-8"; /*多个空格无效 */
 @charset "UTF-8";/* 无效，在规则之前有一个字符（空格）*/

Explanation: If the special characters used in the style sheet cannot be used in the character encoding specified in the style sheet means, you can use "Character Escape" to escape characters.

Recommended related articles:

How to specify the character encoding used by css style sheet

What is the character encoding? How to set character encoding in html5?

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