html, body{
	margin: 0;
	padding: 0;
	text-align: center;
}

#page{
	width: 780px; 
	margin: 4em auto;
	text-align: left;
}

#top{
	margin: 0;
}

#top h1{
	margin: 0;
}

#prelude{
	position: absolute;
	width: 780px;
	top: 7px;
	left: 50%;
	margin: 0 0 0 -390px;
	padding: 0 1ex;
}

#main {
  float: left; 
  width: 520px;
  }

#content{
	margin: 0 0 0 30px;
	padding: 1em 0 0 0;
}

.post{
	margin-bottom: 4em;
}

#sidebar{
	float: right;
	width: 240px;
	padding-bottom: 4em;
}

#sidebar div{
	margin: 0 30px 0 0;
	padding: 1ex 1em;
}

#footer{
	padding: 1ex 1em 1ex 1em;
	margin : 0;
	clear: both;
}