Webserver: Fileaccess only for scripts on the server, not browsers of visitors?

Webserver: Fileaccess only for scripts on the server, not browsers of
visitors?

Silly question, but I'm stuck. After month, I want to go live with my
project and thought: preventing pagevisitors from accessing files that are
not created for direct user access - CHMOD will do this in seconds for
you...
The situation- This is the tree of my root folder:
/index.php
/content/home.php
/content/page2.php
It's kind of a template system. Index.php is the wrapper. And home.php or
page2.php are files with the page content. Common situation I thought. So
I changed the filepermission with filezilla of the folder "content" and
all subfolders an files to Owner permission "read, write, execute = yes"
and Group and Public to none.
But if I try to access www.mypage.com/content/home.php the access is given.
Thought CHMOD restricts the access via browser (public permission) and
only gives index.php the right to access the files and include them within
index.php.