Formatting work item/task description

Hi,

I want to know the formatting options available for the task description (long text) which displays in work item:

1. Can I use Styles or Smart Styles in task description? If yes, where can i attach the style to task description. I tried this approach, but couldn't succeed!

2. We insert expression-> multiline container. can i control the formatting of the printing the internal table contents. I've data like agent name, status and       approval dates. Right now they are getting printed in zigzag style-no proper format

3. Pls let me know all the formatting options for the task description text.

Thanks,

Ravi