To add style to your comments you can use our bbcode buttons.
In order to use them simply highlight the text you wish to modify and then select the style you wish to add.
Or you can just click a button and type within the tag to apply the style. e.g [b]example[/b] would be example.
Here is a list of the buttons and the styles they provide.
Remember to click preview to make sure that the formating is correct!