diff --git a/boards/mdx_neboard.py b/boards/mdx_neboard.py
--- a/boards/mdx_neboard.py
+++ b/boards/mdx_neboard.py
@@ -34,23 +34,43 @@ class ReflinkPattern(Pattern):
         return ref_element
 
 
+class SpoilerPattern(Pattern):
+    def handleMatch(self, m):
+        quote_element = etree.Element('span')
+        quote_element.set('class', 'spoiler')
+        quote_element.text = m.group(2)
+
+        return quote_element
+
+
+class CommentPattern(Pattern):
+    def handleMatch(self, m):
+        quote_element = etree.Element('span')
+        quote_element.set('class', 'comment')
+        quote_element.text = '//' + m.group(3)
+
+        return quote_element
+
+
 class NeboardMarkdown(markdown.Extension):
     AUTOLINK_PATTERN = r'(http://\S+)'
     QUOTE_PATTERN = r'(>){1}(.+)'
     REFLINK_PATTERN = r'((>){2}(\d+))'
+    SPOILER_PATTERN = r'%%(.+)%%'
+    COMMENT_PATTERN = r'(//(.+))'
 
     def extendMarkdown(self, md, md_globals):
         autolink = AutolinkPattern(self.AUTOLINK_PATTERN, md)
         quote = QuotePattern(self.QUOTE_PATTERN, md)
         reflink = ReflinkPattern(self.REFLINK_PATTERN, md)
+        spoiler = SpoilerPattern(self.SPOILER_PATTERN, md)
+        comment = CommentPattern(self.COMMENT_PATTERN, md)
 
         md.inlinePatterns[u'autolink_ext'] = autolink
         md.inlinePatterns.add(u'reflink', reflink, '<entity')
         md.inlinePatterns.add(u'quote', quote, '<entity')
-        # md.inlinePatterns[u'reflink'] = reflink
-        # md.inlinePatterns[u'quote'] = quote
-
-        # del(md.inlinePatterns[u'entity'])
+        md.inlinePatterns[u'spoiler'] = spoiler
+        md.inlinePatterns[u'comment'] = comment
 
 
 def makeExtension(configs=None):
diff --git a/boards/static/css/md/base_page.css b/boards/static/css/md/base_page.css
--- a/boards/static/css/md/base_page.css
+++ b/boards/static/css/md/base_page.css
@@ -179,4 +179,17 @@ blockquote {
     color: greenyellow;
     padding-left: 5px;
     border-left: solid 2px greenyellow;
+}
+
+.spoiler {
+    background: white;
+    color: white;
+}
+
+.spoiler:hover {
+    background: black;
+}
+
+.comment {
+    color: darkseagreen;
 }
\ No newline at end of file
diff --git a/boards/static/css/sw/base_page.css b/boards/static/css/sw/base_page.css
--- a/boards/static/css/sw/base_page.css
+++ b/boards/static/css/sw/base_page.css
@@ -191,7 +191,20 @@ a {
 }
 
 .quote {
-    color: blue;
+    color: #182F6F;
     padding-left: 5px;
     border-left: solid 2px blue;
+}
+
+.spoiler {
+    background: black;
+    color: black;
+}
+
+.spoiler:hover {
+    background: #ffffff;
+}
+
+.comment {
+    color: darkseagreen;
 }
\ No newline at end of file