http://codex.ww.wp.xz.cn/Forum_Welcome#Include_as_Much_Information_as_Possible
what theme are you using?
what are the exact changes you have made?
can you post a link to your site?
Hi Michael, thanks for ask me these questions.
The web site is: http://www.bilanciamo.it/home/
The theme is: Baskerville version 1.15
Changes: created analyticstracking.php with inside
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-74045607-1', 'auto');
ga('send', 'pageview');
</script>
And the first time I wrote inside the page index.php the line of code
<?php include_once("analyticstracking.php") ?>
And after, because nothing was changed, the same line of code into the page header.php
in Firefox and Chrome (windows laptop), the site is centered;
what browser are you using?
have you tried different browsers and computers to view the site?
possibly check your browser and clear the browser cache …