Bit of a margin/border to node content

Minor thing really but I think nodes look better with a bit of a margin and a border to make the content look part of the page, bit more structured... See screenshots to see what I mean.

Only a simple change, just takes this bit of css.

#content-content div.node {
padding-left: 20px;
border-left: 2px solid #D1D1D1;
}