Add more layout

docs/_sass/bootstrap.sass

@@ -1,20 +1,8 @@
 $bootstrap: #6f5499
 $bootstrap-invert: #fff
 
-.bd-bootstrap
-  .hero
-    background-color: $bootstrap
-    color: $bootstrap-invert
-    .title,
-    .subtitle
-      color: currentColor
-    .subtitle
-      color: rgba($bootstrap-invert, 0.5)
-    .subtitle a
-      border-bottom: 1px solid currentColor
-      color: currentColor
-      &:hover
-        color: $bootstrap-invert
+.bd-bootstrap-table
+  margin: 3rem 0
 
 .bd-pros-heading
   padding: 0 2rem
@@ -54,11 +42,7 @@ $bootstrap-invert: #fff
   .icon
     color: $bootstrap
 
-.bd-separator
-  color: $border
-  margin: 0 0.25em
-
-.bd-comparison
+.bd-bootstrap-comparison
   margin: 0 auto
   max-width: 42rem
   .table
@@ -93,5 +77,5 @@ $bootstrap-invert: #fff
       color: $text-strong
       font-weight: $weight-bold
 
-.bd-comparison-header
+.bd-bootstrap-comparison-header
   margin-bottom: 3rem