The overall subject of positioning in CSS is covered on a series of pages later. Text can be aligned without affecting the actual affecting the rest of the page though. To show this put these two in an HTML document:
<p style="text-align:right; background-color:yellow;">Greetings from over here.</p>
<p style="text-align:center; background-color:yellow;">What are you doing over there?.</p>
The default is left aligned. Note the spelling of "center". Paste the above into a Web page and you will see from the yellow background that the paragraph does not move it is only the text which is aligned. Remember that paragraphs are block elements and so by default will fill the width of the page (less margins).
