You could put the anchor link in a div and apply the css - margin:auto; to the div like you did with #wrapper
Rendering has nothing to do with PHP, although the modification may be within a PHP script.
Moving from PHP forum to HTML/CSS forum.
Also, in the future please select a topic title that better describes the problem you are having.
link said the website is under review...
yeah 000webhost is real bad for that. plus Im pretty sure chat applications violate it's terms of service agreement for free hosting