The `accept-charset` attribute in HTML is used with the form element to specify the character encodings that the server accepts. That means, it defines the charset in which the form data should be submitted to the server. This attribute can be used when the form is submitted using the `post` method.
Here is an example of how you can use it in your HTML code:
```
In the above example, `UTF-8` is a character encoding that includes almost every character from all known language. When the `accept-charset` attribute is not specified, the default is the reserved string `“UNKNOWN”`. You can list multiple character encodings separated by space.
Remember that, the `accept-charset` attribute is a relatively advanced feature and not widely used as most forms and servers default to `UTF-8` encoding. In the vast majority of cases, you’ll be fine to simply use `UTF-8` and exclude the `accept-charset` attribute.
