about half is coming from
<h1 id="indexDefaultHeading"/>
some is coming from .greeting
.greeting {
padding: 0;
margin: 0;
}
clears out a bunch (note: you'll want to put some back on the bottom at least, this is just a demonstration)
your also getting padding from
.centercolumn {
padding: 0;
}
(again, you'll want to put some back at the sides and probably the bottom, just showing where its coming from)
