You can create a graphically formatted note (caution), warning, info, or tip box. Consider the following examples. To view the markup for these examples, open the Source Editor for this page, as described in Editing a Page.
Be Careful
The body of the note.
Warning
The warning message.
Useful Information
The useful information.
Helpful Hint
The tip.
For instructions, refer to Atlassian help:
https://confluence.atlassian.com/conf613/info-tip-note-and-warning-macros-964960835.html 
