1

I want to provide an easy way to make exponent style text in the Redactor field type.
enter image description here

Is there a Redactor plugin to do that?

If no what is the best way to handle that?

1/ HTML superscript tag

<p>This text contains <sup>superscript</sup> text.</p>

or
2/ CSS custom Redactor class

.sup { 
    vertical-align: super;
    font-size: smaller;
}  
5

In craft/config/redactor you can either add your own setting file, or edit one of the ones already there. If you add the following JSON:

"formattingAdd": [
  {
    "tag": "sup",
    "title": "Superscript"
  }
]

You will have access to a Superscript choice under the Formatting buttons dropdown menu. This will wrap the selected text in a <sup> tag.

While I'm not sure if this is the correct way of adding stuff like this, I just tested it and it does work.

1

The definitive and most simple answer for all Redactor Inline Styles requests is this great plugin from carlcs: https://github.com/carlcs/craft-redactorinlinestyles

enter image description here

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