Now you'll get to see the fruits of your labour. Make sure that both your style sheet and your XML document are in the same directory, and then open the XML document. It should launch in your Web browser, and show your content with the formatting you defined in your style sheet. Your XML document should look like this:
The colors we defined in the CSS may not be to your liking. If you feel like experimenting a bit, you can open your style sheet in a text editor, change the colors and other font attributes, save the style sheet, and refresh your Web browser to see the changes. Playing with the code is the best way to learn.