diff --git a/browser/components/MarkdownPreview.js b/browser/components/MarkdownPreview.js
index 352a7c91..50e521ac 100644
--- a/browser/components/MarkdownPreview.js
+++ b/browser/components/MarkdownPreview.js
@@ -14,7 +14,7 @@ const katex = window.katex
 const sanitizeOpts = {
   allowedTags: [ 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol',
   'nl', 'li', 'b', 'i', 'strong', 'em', 'strike', 'code', 'hr', 'br', 'div',
-  'table', 'thead', 'caption', 'tbody', 'tr', 'th', 'td', 'pre', 'img', 'span', 'cite', 'del', 'u', 'sub', 'sup' ],
+  'table', 'thead', 'caption', 'tbody', 'tr', 'th', 'td', 'pre', 'img', 'span', 'cite', 'del', 'u', 'sub', 'sup', 's', 'input', 'label' ],
   allowedClasses: {
     'a': ['lineAnchor'],
     'div': ['math'],
@@ -24,14 +24,20 @@ const sanitizeOpts = {
   allowedAttributes: {
     a: ['href', 'data-key'],
     img: [ 'src' ],
+    label: ['for'],
+    input: ['checked', 'type'],
     '*': ['id', 'name']
   },
   transformTags: {
     '*': function (tagName, attribs) {
       let href = attribs.href
+      if (tagName === 'input' && attribs.type !== 'checkbox') {
+        return false
+      }
       if (_.isString(href) && href.match(/^#.+$/)) attribs.href = href.replace(/^#/, '#md-anchor-')
       if (attribs.id) attribs.id = 'md-anchor-' + attribs.id
       if (attribs.name) attribs.name = 'md-anchor-' + attribs.name
+      if (attribs.for) attribs.for = 'md-anchor-' + attribs.for
       return {
         tagName: tagName,
         attribs: attribs
diff --git a/browser/lib/markdown.js b/browser/lib/markdown.js
index 3ba78b5c..eaa55297 100644
--- a/browser/lib/markdown.js
+++ b/browser/lib/markdown.js
@@ -17,7 +17,9 @@ var md = markdownit({
     return str
   }
 })
-md.use(emoji)
+md.use(emoji, {
+  shortcuts: {}
+})
 md.use(math, {
   inlineRenderer: function (str) {
     return `<span class='math'>${str}</span>`
@@ -26,6 +28,7 @@ md.use(math, {
     return `<div class='math'>${str}</div>`
   }
 })
+md.use(require('markdown-it-checkbox'))
 
 let originalRenderToken = md.renderer.renderToken
 md.renderer.renderToken = function renderToken (tokens, idx, options) {
diff --git a/browser/styles/mixins/marked.styl b/browser/styles/mixins/marked.styl
index 7f82a9ec..cfa893b1 100644
--- a/browser/styles/mixins/marked.styl
+++ b/browser/styles/mixins/marked.styl
@@ -78,7 +78,7 @@ marked()
     font-weight bold
   em, i
     font-style italic
-  s
+  s, del, strike
     text-decoration line-through
   u
     text-decoration underline
diff --git a/package.json b/package.json
index 650c6953..e83573d7 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
     "highlight.js": "^8.9.1",
     "lodash": "^3.10.1",
     "markdown-it": "^4.4.0",
+    "markdown-it-checkbox": "^1.1.0",
     "markdown-it-emoji": "^1.1.0",
     "markdown-it-math": "^3.0.2",
     "md5": "^2.0.0",
diff --git a/webpack-skeleton.js b/webpack-skeleton.js
index b9b21fdf..68b3f760 100644
--- a/webpack-skeleton.js
+++ b/webpack-skeleton.js
@@ -32,7 +32,8 @@ var config = {
     'markdown-it-emoji',
     'fs-jetpack',
     'markdown-it-math',
-    '@rokt33r/sanitize-html'
+    '@rokt33r/sanitize-html',
+    'markdown-it-checkbox'
   ]
 }