modifying application htaccess

I would like to modify this htaccess

Code:

<IfModule authz_core_module>
   Require all denied
</IfModule>
<IfModule !authz_core_module>
   Deny from all
</IfModule>

To enable css and images and js files only

Is that possible if so how to do so correctly.

There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!