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    The @charset CSS at-rule specifies the character encoding used in the style sheet. It must be the first element in the style sheet and not be preceded by any character; as it is not a nested statement, it cannot be used inside conditional group at-rules. If several @charset at-rules are defined, only the first one is used, and it cannot be used inside a style attribute on an HTML element or inside the <style> element where the character set of the HTML page is relevant.

    This at-rule is useful when using non-ASCII characters in some CSS properties, like content.

    As there are several ways to define the character encoding of a style sheet, the browser will try the following methods in the following order (and stop as soon as one yields a result) :

    1. The value of the Unicode byte-order character placed at the beginning of the file.
    2. The value given by the charset attribute of the Content-Type: HTTP header or the equivalent in the protocol used to serve the style sheet.
    3. The @charset CSS at-rule.
    4. Use the character encoding defined by the referring document: the charset attribute of the <link> element. This method is obsoleted in HTML5 and must not be used.
    5. Assume that the document is UTF-8


    @charset "UTF-8";
    @charset 'iso-8859-15';

    where :

    Is a <string> denoting the character encoding to be used. It must be the name of a web-safe character encoding defined in the IANA-registry. If several names are associated with an encoding, only the one marked with preferred must be used.

    Formal syntax

    @charset charset;


    @charset "UTF-8";       /* Set the encoding of the style sheet to Unicode UTF-8 */
    @charset 'iso-8859-15'; /* Set the encoding of the style sheet to Latin-9 (Western European languages, with euro sign) */
     @charset "UTF-8";      /* Invalid, there is a character (a space) before the at-rule */
    @charset UTF-8;         /* Invalid, without ' or ", the charset is not a CSS <string> */


    Specification Status Comment
    CSS Level 2 (Revision 1)
    The definition of '@charset' in that specification.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 2.0 1.5 (1.8)[*] 5.5 [**] 9 4
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support 2.1 1.0 (1.8) 5.5 [**] 10.0 4

    [*] Firefox 1.0 supported only an invalid syntax where the character encoding is not set between single or double quotes.
    [**] From IE 5.5 to IE 7 included, IE also supported the invalid syntax where the character encoding is not set between single or double quotes.

    See also

    CSS at-rules: @charset, @document, @font-face, @import, @keyframes, @media, @page, @supports

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    Last updated by: jsx,