Integration of forum and content website

[param_d99]

Can anyone guide me how to integrate my existing website into smf forum in the manner that the look and feel of the website should not change. For example, I use joomla for articles and other stuff and smf for forum..... I want to integrate it in such a way that both look one and not two different websites. I have seen a few sites like that but do not know how to so that..