Error 403 wont load any files in project folders - html

Question

Can someone please explain with clear step by step instructions to a noobie, why is my console giving me these errors for some of my files on a project? I usually get them for external style sheets sometimes images and external .js documents.
Makes no sense to me.
Console shows Error: 403 Forbidden for each of them...
My noobie intuition says something is not right with my permissions for my sites directory or something among these lines. I dont know how to check

Answer 1

If you are using a LAMP stack for web server then you can face that problem.
First check the permission of all the files in the subsequent directory -
Let say that these are four external js in your html file like as :-
<script src="/js/file1.js"></script>
<script src="/js/file2.js"></script>
<script src="/js/file3.js"></script>
<script src="/js/file4.js"></script>
and you are getting errors for file1.js and file2.js then goto the js directory and check their permissions :-
user#host js $ ls -la
total 188
drwxrwxr-x 2 user user 4096 Jul 19 01:51 .
drwxrwxr-x 6 user user 4096 Jul 19 01:39 ..
-rw-rw-r-- 1 user user 55258 Feb 13 2014 file1.js
-rwxrw-r-- 1 user user 55258 Feb 13 2014 file2.js
-rwxrw-r-- 1 user user 55258 Feb 13 2014 file3.js
-rw-rw-r-- 1 user user 55258 Feb 13 2014 file4.js
-rw-rw-r-- 1 user user 29110 Feb 13 2014 bootstrap.min.js
If required change their permission with chmod and chown command.