Mozilla block-links not working

This test page is a cut-down version of the template, where the navigation on the left did not have the nice large hit area in Gecko 1.7 (Firefox 1.0). It was down to a bug in Mozilla, where the links aren't block when the content is next to them. Now fixed in the 1.8 branch. It is a fairly complex float layout, but only does this in Moz. (Not that IE works without width: 100%, but that's another story.)

Please note: the links next to the content are not 'block', the links below the content are block (which is the expected behaviour).