Fix multi-level blockquote bottom margin

Author: carlbennett

src/static/a/main-mobile.css

@@ -351,7 +351,7 @@ blockquote {
   background-repeat: no-repeat;
   border-radius: 6px;
   clear: both;
-  margin: 0px;
+  margin: 0px 0px 8px 0px;
   min-height: 38px;
   padding: 1px 8px 1px 54px;
 }

src/static/a/main.css

@@ -366,7 +366,7 @@ blockquote {
   background-repeat: no-repeat;
   border-radius: 6px;
   clear: both;
-  margin: 0px;
+  margin: 0px 0px 8px 0px;
   min-height: 38px;
   padding: 1px 8px 1px 54px;
 }