diff --git a/src/General/Main.coffee b/src/General/Main.coffee
index 72bca370f..f45e5f8e4 100644
--- a/src/General/Main.coffee
+++ b/src/General/Main.coffee
@@ -195,11 +195,6 @@ Main =
     Main.setClass()
 
   setClass: ->
-    if (md2016 = $ 'link[rel="stylesheet"][href^="//s.4cdn.org/css/md2016."]', d.head)
-      md2016.removeAttribute 'media'
-      if getComputedStyle(d.body).backgroundColor is 'rgb(245, 245, 245)' # not blocked
-        $.addClass doc, 'md2016'
-
     if g.VIEW is 'catalog'
       $.addClass doc, $.id('base-css').href.match(/catalog_(\w+)/)[1].replace('_new', '').replace /_+/g, '-'
       return
@@ -390,7 +385,7 @@ Main =
     $.ready ->
       cb() if Main.isThisPageLegit()
 
-  css: `<%= importCSS('font-awesome', 'style', 'yotsuba', 'yotsuba-b', 'futaba', 'burichan', 'tomorrow', 'photon', 'md2016', 'supports') %>`
+  css: `<%= importCSS('font-awesome', 'style', 'yotsuba', 'yotsuba-b', 'futaba', 'burichan', 'tomorrow', 'photon', 'supports') %>`
 
   cssWWW: `<%= importCSS('www') %>`
 
diff --git a/src/Images/ImageExpand.coffee b/src/Images/ImageExpand.coffee
index 8d62c47d7..2d0eb8aef 100644
--- a/src/Images/ImageExpand.coffee
+++ b/src/Images/ImageExpand.coffee
@@ -178,7 +178,6 @@ ImageExpand =
       el.src = src or file.url
 
     el.className = 'full-image'
-    $.addClass el, 'expanded-thumb' if $.hasClass doc, 'md2016'
     $.after thumb, el
 
     if isVideo
diff --git a/src/css/md2016.css b/src/css/md2016.css
deleted file mode 100644
index 0e3e8f66c..000000000
--- a/src/css/md2016.css
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Adapted from https://s.4cdn.org/css/md2016.651.css */
-:root.md2016 .page-num {
-  color: #999;
-}
-:root.md2016 .summary {
-  border-radius: 0 0 2px 2px;
-  background-color: #f5f5f5;
-  width: 80%;
-  display: block;
-  margin: -1px auto 0 auto;
-  box-shadow: 0 2px 2px 0 rgba(0,0,0,.14), 0 3px 1px -2px rgba(0,0,0,.2), 0 1px 5px 0 rgba(0,0,0,.12);
-  border-top: 1px solid rgba(0,0,0,0.1);
-  text-indent:10px;
-  padding:10px 0;
-}
-
-:root.md2016 #hoverUI div.postContainer,
-:root.md2016 .inline div.postContainer {
-  width: auto;
-  margin: 0;
-}
-
-:root.md2016 #hoverUI div.post,
-:root.md2016 .inline div.post {
-  max-width: 100%;
-}
-:root.md2016 #unread-line {
-  display: block;
-  position: relative;
-  top: 7.5px;
-}
-:root.md2016 .threadContainer {
-  margin-left: 26px;
-  border-left: none;
-}