How to have correct style in visual editor for macro ?

[BarthélémyH]

I have followed the tutorial about extending the rich text editor in JIRA : https://developer.atlassian.com/server/jira/platform/extending-the-rich-text-editor-in-jira/

The style is correct once I save but not in the visual tab of the editor. How should I proceed to have my css available in the visual tab of the editor ?