diff --git a/layout/includes/head/config_site.pug b/layout/includes/head/config_site.pug
index 01417ab..84167e8 100644
--- a/layout/includes/head/config_site.pug
+++ b/layout/includes/head/config_site.pug
@@ -1,10 +1,10 @@
 -
   let isHighlightShrink
   if (theme.highlight_shrink == 'none') isHighlightShrink = 'undefined'
-  else if (page.highlight_shrink !== undefined) isHighlightShrink = page.highlight_shrink
+  else if (page.highlight_shrink !== null && page.toc !== undefined ) isHighlightShrink = page.highlight_shrink
   else isHighlightShrink = theme.highlight_shrink
 
-  const pageToc = page.toc !== undefined ? page.toc : theme.toc.enable
+  const pageToc = page.toc !== null && page.toc !== undefined ? page.toc : theme.toc.enable
   const showToc = is_post() && pageToc && (toc(page.content) !== '' || page.encrypt == true )
 -
 
diff --git a/package.json b/package.json
index 63a21cd..641ee07 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hexo-theme-butterfly",
-  "version": "3.0.0",
+  "version": "3.0.0-rc-1",
   "private": true,
   "engines": {
     "node": ">=8.10.0"
diff --git a/scripts/tags/button.js b/scripts/tags/button.js
index 4386cea..8e7ea43 100644
--- a/scripts/tags/button.js
+++ b/scripts/tags/button.js
@@ -21,8 +21,7 @@ function btn (args) {
   icon = icon.trim()
   option = option.trim()
 
-  return `<a class="btn-beautify button--animated ${option}" href="${urlFor(url)}" title="${text}">
-  ${icon.length > 0 ? `<i class="${icon} fa-fw"></i>` : ''} ${text} </a>`
+  return `<a class="btn-beautify button--animated ${option}" href="${urlFor(url)}" title="${text}">${icon.length > 0 ? `<i class="${icon} fa-fw"></i>` : ''} ${text} </a>`
 }
 
 hexo.extend.tag.register('btn', btn, { ends: false })
diff --git a/source/css/_layout/mobile-sidebar.styl b/source/css/_layout/mobile-sidebar.styl
index 5d599fc..2b50b8f 100644
--- a/source/css/_layout/mobile-sidebar.styl
+++ b/source/css/_layout/mobile-sidebar.styl
@@ -12,7 +12,8 @@
     top: 0
     right: -250px
     z-index: 103
-    overflow: hidden scroll
+    overflow-x: hidden
+    overflow-y: auto
     width: 250px
     height: 100%
     background: #f6f8fa