You have set up the CSS based on the P tag, so a P tag has to be present. In screnn.css on line 625 you have:
#content #lower2 p {
color: #32398e;
font-family: Segoe,"Segoe UI","DejaVu Sans","Trebuchet MS",Verdana,sans-serif;
font-size: 120%;
font-style: normal;
font-weight: normal;
line-height: 1.25em;
text-align: left;
}
Another solution would be to remove the p requirement in the css file so that the <p> tag isn't necessary in order to pick up the font. The content is always going to be subject to the css in context. On screen.css line 595 you have:
#content #lower2 {
text-align: center;
}
That is what is changing the alignment. Context is always going to be significant.