Fix borders, paddings and margins on asciicast page

app/assets/stylesheets/asciicasts.sass

@@ -48,7 +48,6 @@
 
   section.meta
     padding: 0
-    border-bottom: 1px solid #ddd
     color: #666
 
     .meta-list
@@ -81,11 +80,10 @@
 
   section.description
     padding: 0
-    border-bottom: 1px solid #eee
+    border-top: 0
 
     .content
-      padding-bottom: 20px
-      margin-top: 20px
+      margin: 20px 0
 
       h1
         font-size: 22px

app/assets/stylesheets/base.sass

@@ -62,13 +62,11 @@ section.cinema
 
 section.odd, section.even
   padding: 20px 0
-  border-bottom: 1px solid #ddd
 
 section.odd
   background-color: #fff
-
-section.even:last-child, section.odd:last-child
-  border-bottom: 0
+  border-top: 1px solid #e0e0e0
+  border-bottom: 1px solid #e0e0e0
 
 a
   color: $link-color