Insert a rule creating the agents namespace with the prefix ag and the URI http://www.epacmo.org/agents. Edit both of the selectors in the style sheet to belong to the agents name space using both the namespace and the escape style for each selector.

I don't fully understand what the professor is asking me to do here. Any help would be great

/*
New Perspectives on XML
Tutorial 2
Case Problem 1
Filename: agents.css
Author: Randy White
Date: 6/18/2011
This file contains styles used in the EPAC contribution report for agent names
*/
<ag> {http://www.epacmo.org/agents}</ag>

agent {display: block; font-family: Arial, Helvetica, sans-serif; font-size: 12pt;
font-weight: bold; letter-spacing: 3; margin-left: 15px;
border-top: 1px solid black; padding: 5px}
amount {background-color: rgb(0,128,0); color: yellow}
/* Place namespace escape styles below */