A good first step would be to define baselines for the background color, text color, and font family and sizing for the overall document. We're going to be aiming for a natural kind of feel, so we'll go with some green shades for the colors. The font will be, as is so often the case for personal sites, a smaller-than-default sans-serif font.
<style type="text/css"> body {color: rgb(18%,19%,17%); background: rgb(85%,92%,81%); font: 0.85em Verdana, sans-serif;} </style>