php and mysql

hello,this is Avery,in the last a couple of weeks,I learned some PHP and of course,i writen a website using php and mysql,here is the url http://www.xnlmm.com,
That is not good looking at this moment,but i will improve this website.
I need to learn more php function() and how to set some CSS,i am going to use CSS to make my site much good looking.