diff --git a/CHANGELOG.md b/CHANGELOG.md
index eba4cdf6..4553f687 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.1.2
+### Bug fixes
+- fix failed `auto2top` in mobile
+
+
 ## 1.1.1
 ### Bug fixes
 - Optimize progress bar
diff --git a/src/event.js b/src/event.js
index 48922fb4..3012b2ac 100644
--- a/src/event.js
+++ b/src/event.js
@@ -1,10 +1,11 @@
+import { isMobile } from './util'
 
 /**
  * Active sidebar when scroll
  * @link https://buble.surge.sh/
  */
 export function scrollActiveSidebar () {
-  if (/mobile/i.test(navigator.userAgent)) return
+  if (isMobile()) return
 
   const anchors = document.querySelectorAll('.anchor')
   const nav = {}
@@ -92,7 +93,10 @@ export function bindToggle (dom) {
 }
 
 let cacheContentDOM
-export function scroll2Top (dom) {
-  cacheContentDOM = cacheContentDOM || document.querySelector(dom)
+export function scroll2Top () {
+  if (!cacheContentDOM) {
+    const dom = isMobile() ? 'body' : 'section.content'
+    cacheContentDOM = document.querySelector(dom)
+  }
   cacheContentDOM.scrollTop = 0
 }
diff --git a/src/render.js b/src/render.js
index c85f9362..e1560813 100644
--- a/src/render.js
+++ b/src/render.js
@@ -70,7 +70,7 @@ export function renderArticle (content) {
   renderSidebar.rendered = false
   renderNavbar.rendered = false
 
-  if (OPTIONS.auto2top) scroll2Top('section.content')
+  if (OPTIONS.auto2top) scroll2Top()
 }
 
 /**
@@ -123,14 +123,15 @@ export function renderLoading ({ loaded, total }) {
     CACHE['loading'] = div
   }
 
-  CACHE['loading'].style.opacity = 1
-  CACHE['loading'].style.width = num + '%'
   if (num >= 95) {
     clearTimeout(renderLoading.cacheTImeout)
     renderLoading.cacheTImeout = setTimeout(_ => {
       CACHE['loading'].style.opacity = 0
       CACHE['loading'].style.width = '0%'
     }, 200)
+  } else {
+    CACHE['loading'].style.opacity = 1
+    CACHE['loading'].style.width = num + '%'
   }
 }
 
diff --git a/src/util.js b/src/util.js
index 4db56230..013b2769 100644
--- a/src/util.js
+++ b/src/util.js
@@ -95,3 +95,8 @@ export function getRoute () {
 
   return route
 }
+
+export function isMobile () {
+  return /mobile/i.test(navigator.userAgent)
+}
+