YouTipPr Charset Rule
### Example
Set the character encoding used in the style sheet to UTF-8:
```css
@charset "UTF-8";
```
### Browser Support
The numbers in the table indicate the first browser version that fully supports this rule.
| At-rule | Chrome | Edge | Firefox | Safari | Opera |
| :--- | :--- | :--- | :--- | :--- | :--- |
| **@charset** | 2.0 | 12.0 | 1.5 | 4.0 | 9.0 |
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### Definition and Usage
* The `@charset` rule specifies the character encoding used in the external style sheet (`.css` file).
* It can only be used in CSS files (not in HTML style tags).
* It **must** be the very first element in the stylesheet, and there must not be any character (including whitespace and byte-order marks) preceding it.
* If multiple `@charset` rules are declared, only the first one will be used.
* It cannot be used inside HTML elements or the `