diff --git a/src/core/fetch/ajax.js b/src/core/fetch/ajax.js
index 28d66444d..669a8616d 100644
--- a/src/core/fetch/ajax.js
+++ b/src/core/fetch/ajax.js
@@ -2,6 +2,7 @@ import progressbar from '../render/progressbar'
 import { noop } from '../util/core'
 
 const cache = {}
+let uid = 0
 
 /**
  * Simple ajax get
@@ -24,6 +25,7 @@ export function get (url, hasBar = false) {
   xhr.send()
 
   return {
+    uid: uid++,
     then: function (success, error = noop) {
       if (hasBar) {
         const id = setInterval(
diff --git a/src/core/render/compiler.js b/src/core/render/compiler.js
index 7ed7ea64a..3223beca2 100644
--- a/src/core/render/compiler.js
+++ b/src/core/render/compiler.js
@@ -6,6 +6,7 @@ import { slugify } from './slugify'
 import { emojify } from './emojify'
 import { isAbsolutePath, getPath } from '../router/util'
 import { isFn, merge, cached } from '../util/core'
+import { get } from '../fetch/ajax'
 
 const cachedLinks = {}
 function getAndRemoveConfig (str = '') {
@@ -22,6 +23,27 @@ function getAndRemoveConfig (str = '') {
 
   return { str, config }
 }
+const compileMedia = {
+  markdown (url, config) {
+    const request = get(url, false)
+    const id = `docsify-get-${request.uid}`
+
+    request.then(text => {
+      document.getElementById(id).innerHTML = this.compile(text)
+    })
+
+    return `<div data-origin="${url}" id=${id}></div>`
+  },
+  html (url, config) {
+    return `<iframe src="${url}" ${config || 'width=100% height=400'}></iframe>`
+  },
+  video (url, config) {
+    return `<video src="${url}" ${config || 'controls'}>Not Support</video>`
+  },
+  audio (url, config) {
+    return `<audio src="${url}" ${config || 'controls'}>Not Support</audio>`
+  }
+}
 
 export class Compiler {
   constructor (config, router) {
@@ -172,6 +194,25 @@ export class Compiler {
         url = getPath(contentBase, href)
       }
 
+      let media
+      if (config.type && (media = compileMedia[config.type])) {
+        return media.call(_self, url, title)
+      }
+
+      let type = null
+      if (/\.(md|markdown)/.test(url)) {
+        type = 'markdown'
+      } else if (/\.html?/.test(url)) {
+        type = 'html'
+      } else if (/\.(mp4|ogg)/.test(url)) {
+        type = 'video'
+      } else if (/\.mp3/.test(url)) {
+        type = 'audio'
+      }
+      if (type) {
+        return compileMedia[type].call(_self, url, title)
+      }
+
       return `<img src="${url}"data-origin="${href}" alt="${text}"${attrs}>`
     }
 
@@ -179,7 +220,10 @@ export class Compiler {
     origin.listitem = renderer.listitem = function (text) {
       const checked = CHECKED_RE.exec(text)
       if (checked) {
-        text = text.replace(CHECKED_RE, `<input type="checkbox" ${checked[1] === 'x' ? 'checked' : ''} />`)
+        text = text.replace(
+          CHECKED_RE,
+          `<input type="checkbox" ${checked[1] === 'x' ? 'checked' : ''} />`
+        )
       }
       return `<li${checked ? ` class="task-list-item"` : ''}>${text}</li>\n`
     }
diff --git a/src/core/render/index.js b/src/core/render/index.js
index 8e51842ca..7dd482302 100644
--- a/src/core/render/index.js
+++ b/src/core/render/index.js
@@ -11,8 +11,9 @@ import { isPrimitive } from '../util/core'
 import { scrollActiveSidebar, scroll2Top } from '../event/scroll'
 
 function executeScript () {
-  const script = dom.findAll('.markdown-section>script')
-      .filter(s => !/template/.test(s.type))[0]
+  const script = dom
+    .findAll('.markdown-section>script')
+    .filter(s => !/template/.test(s.type))[0]
   if (!script) return false
   const code = script.innerText.trim()
   if (!code) return false
@@ -23,11 +24,10 @@ function executeScript () {
 }
 
 function formatUpdated (html, updated, fn) {
-  updated = typeof fn === 'function'
-    ? fn(updated)
-    : typeof fn === 'string'
-      ? tinydate(fn)(new Date(updated))
-      : updated
+  updated =
+    typeof fn === 'function'
+      ? fn(updated)
+      : typeof fn === 'string' ? tinydate(fn)(new Date(updated)) : updated
 
   return html.replace(/{docsify-updated}/g, updated)
 }
@@ -43,9 +43,11 @@ function renderMain (html) {
   !this.config.loadSidebar && this._renderSidebar()
 
   // execute script
-  if (this.config.executeScript !== false &&
-      typeof window.Vue !== 'undefined' &&
-      !executeScript()) {
+  if (
+    this.config.executeScript !== false &&
+    typeof window.Vue !== 'undefined' &&
+    !executeScript()
+  ) {
     setTimeout(_ => {
       const vueVM = window.__EXECUTE_RESULT__
       vueVM && vueVM.$destroy && vueVM.$destroy()
@@ -84,7 +86,8 @@ export function renderMixin (proto) {
     this._renderTo('.sidebar-nav', this.compiler.sidebar(text, maxLevel))
     const activeEl = getAndActive(this.router, '.sidebar-nav', true, true)
     if (loadSidebar && activeEl) {
-      activeEl.parentNode.innerHTML += (this.compiler.subSidebar(subMaxLevel) || '')
+      activeEl.parentNode.innerHTML +=
+        this.compiler.subSidebar(subMaxLevel) || ''
     } else {
       // reset toc
       this.compiler.subSidebar()
@@ -140,7 +143,9 @@ export function renderMixin (proto) {
     dom.toggleClass(el, 'add', 'show')
 
     let html = this.coverIsHTML ? text : this.compiler.cover(text)
-    const m = html.trim().match('<p><img.*?data-origin="(.*?)"[^a]+alt="(.*?)">([^<]*?)</p>$')
+    const m = html
+      .trim()
+      .match('<p><img.*?data-origin="(.*?)"[^a]+alt="(.*?)">([^<]*?)</p>$')
 
     if (m) {
       if (m[2] === 'color') {
diff --git a/src/themes/basic/_layout.css b/src/themes/basic/_layout.css
index 6e6d88941..edfae8c1e 100644
--- a/src/themes/basic/_layout.css
+++ b/src/themes/basic/_layout.css
@@ -95,7 +95,7 @@ kbd {
   list-style-type: none;
 }
 
-li input[type=checkbox] {
+li input[type='checkbox'] {
   margin: 0 0.2em 0.25em -1.6em;
   vertical-align: middle;
 }
@@ -381,6 +381,10 @@ body.sticky {
   margin: 2em 0;
 }
 
+.markdown-section iframe {
+  border: 1px solid #eee;
+}
+
 .markdown-section table {
   border-collapse: collapse;
   border-spacing: 0;