@import url('reset.css'); /* CSS Reset */
@import url('divit.css'); /* DivIt gs  */

/* === <tags /> ====================== */
body {
  font: 62.5%/1.75 'lucida grande', verdana, sans-serif;
  color: #333; background: #ddd; text-align: center;
}
 
a {
  color: #000;
  text-decoration: none;
}
acronym, abbr {
  border-bottom: 1px dotted #ddd;
}
 
h1, h2, h3, h4, h5, h6 {
  color: #000;
}
h1 {
  font-size: 2.4em; /* 24px */
}
h2 {
  font-size: 2.2em; /* 22px */
}
h3 {
  font-size: 2.0em; /* 20px */
}
h4 {
  font-size: 1.8em; /* 18px */
}
h5 {
  font-size: 1.6em; /* 16px */
}
h6 {
  font-size: 1.4em; /* 14px */
}
 
p, ul, ol, dl {
  font-size: 1.2em; /* 12px */
  margin-bottom: 0.5em;
}

/* === .classes ====================== */
.hide {
	display: none;
}
.wrapper {
	width: 800px;
	text-align: left;
	margin: auto;
}

/* === #ids ========================== */

Also using a reseter and DivIt.

Basic structure

CSS