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CSS | @charset Rule

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  • Difficulty Level : Hard
  • Last Updated : 29 Jun, 2022
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The @charset rule specifies the character encoding used in the style sheet. The @charset must be the first element in the style sheet and if several @charset rules are defined then the only first one is used. It can not be used in the <style> element where the character set of the HTML page is relevant. 


@charset "utf-8";

Property value: This parameter accept single value “charset”. It is useful when some NON-ASCII characters are used in the content. There are so many ways to define the character encoding of a style sheet. All the browser follow the following methods in the given orders.

  • The value of Unicode byte-order character has to placed at the beginning of the file.
  • The value is given by the charset attribute of the Content-Type: HTTP header or the equivalent in the protocol used to serve the style sheet.
  • Use the character encoding defined by the referring document. This method does not used in HTML 5.
  • Assume that the document is UTF-8

Note: Below list describes the correct and incorrect charset encoding:

@charset ‘iso-8859-15’; [Wrong quoting style used, it’s invalid] @charset “UTF-8”; [More than one space invalid] @charset “UTF-8”; [Invalid, there is a character (space) before the at-rule] @charset “UTF-8”; [It Sets the encoding of the style sheet to the Unicode UTF-8]



<!DOCTYPE html>
        <meta charset="UTF-8">
        <title>CSS @charset Rule</title>
            h1 {
                color: green;



Supported Browsers: The browser supported by @charset rule are listed below:

  • Google Chrome 2.0
  • Microsoft Edge 12.0
  • Internet Explorer 5.5 above
  • Firefox 1.5
  • Safari 4.0
  • Opera 9.0
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