php include html adds white spaces

php include html adds white spaces

I'm having troubles with multiple html pages include. I had main
index.html but it started to be a bit too complex so I decided to split it
in multiple html files and each one of them inport into single index.php
using php.
index.php file
<?php
include('head.html');
include('header.html');
include('slideshow.html');
include('pictureGalery.html');
include('footer.html');
include('closer.html');
?>
using Google Chrome Developer Tool I found, that php includes included
also some white spaces (you can see them in picture in between of divs
header, content, container etc... With a bit of googling I found some
arciles about this problem, like:
PHP include causes white space at the top of the page (I can't use edit
cmd command because I have win7 64-bit and it is not implemented there.
You can only use "open notepad " command, but these whitespaces are not
visible in notepad.
UTF-8 Without BOM?
PHP include() before doctype, causing a white space
I also tried to import reset.css file
(http://meyerweb.com/eric/tools/css/reset/) but it didnt work either. The
only way that seems to work for me is one that posted cebasso
(http://stackoverflow.com/a/14362246/1784053). But I find this way a bit
too agresive and unefective.
Any other ideas how to fix this problem?