how to write corect a href links in ci?

[eluser]CroNiX[/eluser]
You didn't show how you are writing the links that don't work.

Yes, base_url('controller/method') is one way.
Another is to use the anchor() function which is part of the url helper
Another is to NOT use relative paths in your links and start them with a /...like

Code:

<a href="/controller/method">The Link</a>