Fixed CSS selectors in _base.scss and changed blockquote default size to 16px.

Author: leolupianez

docs/_sass/_base.scss

@@ -80,13 +80,13 @@ a {
         margin-top: 15px !important;
         margin-bottom: 30px !important;
     }
-    blockquote {
+    .container > blockquote {
         border: none;
         font-size: 24px;
         text-align: center;
         margin-bottom: 5px;
     }
-    em {
+    blockquote + p em {
         a {
             font-size: 16px;
             font-style: normal;

docs/_sass/bootstrap/_variables.scss

@@ -847,7 +847,7 @@ $headings-small-color: $gray-light !default;
 //** Blockquote small color
 $blockquote-small-color: $gray-light !default;
 //** Blockquote font size
-$blockquote-font-size: ($font-size-base * 1.25) !default;
+$blockquote-font-size: ($font-size-base * 1) !default;
 //** Blockquote border color
 $blockquote-border-color: $gray-lighter !default;
 //** Page header border color