Apache returning 403 status code

Question

I'm basically having a basic HTML document and I am trying to link a JavaScript file and a .gif file which is in a CSS file. However, I notice that the networks tab of my browser says that it encountered a 403 error while trying to fetch the file. How may I solve this problem? Take a view at the image below to see how it looks like.

Answer 1

It was an OS X Bug.

As per Apple, there was a bug which update file permissions unexpectedly. After I updated my system to the latest version, I was able to edit the file permissions. Thanks for your time everyone!