improve HTML rendering

By improving how padding is applied to the right column
and footer, the rendered HTML looks better.

There are still issues, but at least it does not
_suck_ as bad.  :-)

ioccc.css

@@ -573,11 +573,16 @@ a:active {
   float: left;
   width: 80%;
   padding-left: 10px;
-  padding-bottom: 10px;
 }
 .rightcolumn p, code, pre, h1, h2, h3, h4, h5, h6 {
   color: black;
 }
+.rightcolumn p, code, pre {
+  padding-top: 0;
+  padding-left: 10px;
+  padding-right: 10px;
+  padding-bottom: 0;
+}
 
 /* Right column headings */
 .rightcolumn h1 {
@@ -600,6 +605,12 @@ a:active {
   border-style:  solid hidden hidden hidden;
   text-decoration: none;
 }
+.footer p, code, pre {
+  padding-top: 0;
+  padding-left: 10px;
+  padding-right: 10px;
+  padding-bottom: 0;
+}
 
 .footer a {
   text-decoration: none;