I highly encourage to read this chapter and apply the techniques to your own pages. Simplicity You might have ten seconds during which a visitor will look at your page. Alignment Alignment helps tie things together.
Alignment provides organization.
Use left, right or center alignment - don't mix them. Don't rely too much on centering. Both vertical alignment and horizontal alignment are important. Contrast Make some text large and some small. Use large text for emphasis or to attract attention.