use css reset

style/site.css

@@ -1,17 +1,60 @@
+/* CSS reset: http://meyerweb.com/eric/tools/css/reset/ */
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+	margin: 0;
+	padding: 0;
+	border: 0;
+	font-size: 100%;
+	font: inherit;
+	vertical-align: baseline;
+}
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+	display: block;
+}
+body {
+	line-height: 1;
+}
+ol, ul {
+	list-style: none;
+}
+blockquote, q {
+	quotes: none;
+}
+blockquote:before, blockquote:after,
+q:before, q:after {
+	content: '';
+	content: none;
+}
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+
 /* Layout and typography */
 body {
   font-family: 'Palatino Linotype';
   font-size: 16px;
   line-height: 20px;
   color: #252519;
-  margin: 0; padding: 0;
+}
+em {
+    font-style: italic;
 }
 a, a:visited {
   color: #261a3b;
 }
-p {
-  margin: 0;
-}
 h2 {
   margin: 24px 0 12px 0;
   font-weight: normal;
@@ -42,7 +85,6 @@ div#contents h2 {
 div#contents ul {
     list-style: none;
     padding: 0 0 0 5px;
-    margin: 0;
     font-size: 18px;
     line-height: 24px;
 }
@@ -78,7 +120,6 @@ td.code.empty {
 pre, code {
   font-size: 10px; line-height: 14px;
   font-family: 'Monaco';
-  margin: 0; padding: 0;
 }