# Second section

In order to preview this text in the integrated browser, you have to choose the "docbook/xsl/xhtml/docbook.xsl" stylesheet. For this press the "T.." button, then click on the button in the right of the XSL url field and select the file. Press "Ok".

To apply the stylesheet you have to press the "T" button or to press CTRL+SHIFT+T, or on Mac OS X, META+SHIFT+T.

Here are some useful links, regarding XML:

- http://www.xml.com

- http://www.xml.org

- http://www.w3c.org