diff --git a/layout/_pre.ejs b/layout/_pre.ejs
new file mode 100755
index 0000000..907e56f
--- /dev/null
+++ b/layout/_pre.ejs
@@ -0,0 +1,11 @@
+<%
+if (is_home() || is_category() || is_archive() || is_tag() || page.layout == 'list') {
+  if (theme.layout.on_list.sidebar.length == 0) {
+    page.sidebar = false;
+  }
+} else {
+  if (theme.layout.on_page.sidebar.length == 0) {
+    page.sidebar = false;
+  }
+}
+%>
diff --git a/layout/archive.ejs b/layout/archive.ejs
index df2b50d..c0a888b 100755
--- a/layout/archive.ejs
+++ b/layout/archive.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
 	<% if (page.year || page.month) { %>
 		<%- partial('_partial/archive') %>
diff --git a/layout/category.ejs b/layout/category.ejs
index 5dca8cc..4ec837d 100755
--- a/layout/category.ejs
+++ b/layout/category.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <% page.comments = false; %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <% if (site.posts && site.posts.length > 0) { %>
diff --git a/layout/index.ejs b/layout/index.ejs
index 11ef3c8..b3d854a 100755
--- a/layout/index.ejs
+++ b/layout/index.ejs
@@ -1,4 +1,6 @@
-<div class='l_main<%- page.sidebar == false ? 'no_sidebar' : '' %>'>
+<%- partial('_pre') %>
+<% console.log('index: page.sidebar', page.sidebar); %>
+<div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <%- partial('_partial/archive') %>
 </div>
 <%- partial('_partial/side') %>
diff --git a/layout/links.ejs b/layout/links.ejs
index a5cbf85..df0e1c2 100755
--- a/layout/links.ejs
+++ b/layout/links.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <article id="<%= page.layout %>" class="post white-box <%- theme.style.shadow.card ? 'card-shadow' : '' %> <%- theme.style.blur && theme.style.blur.body ? 'body-blur' : '' %> article-type-<%= page.layout %>" itemscope itemprop="blogPost">
     <%- partial('_partial/meta',{post:page, position:'header'}) %>
diff --git a/layout/list.ejs b/layout/list.ejs
index 0afe0f2..42c1f54 100755
--- a/layout/list.ejs
+++ b/layout/list.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <% page.comments = false; %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <% if (site.posts && site.posts.length > 0) { %>
diff --git a/layout/page.ejs b/layout/page.ejs
index 3db1a63..3290103 100755
--- a/layout/page.ejs
+++ b/layout/page.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <%- partial('_partial/article', {post: page, index: false}) %>
 </div>
diff --git a/layout/post.ejs b/layout/post.ejs
index 3db1a63..3290103 100755
--- a/layout/post.ejs
+++ b/layout/post.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <%- partial('_partial/article', {post: page, index: false}) %>
 </div>
diff --git a/layout/tag.ejs b/layout/tag.ejs
index 95fa0b6..f36a72e 100755
--- a/layout/tag.ejs
+++ b/layout/tag.ejs
@@ -1,3 +1,4 @@
+<%- partial('_pre') %>
 <% page.comments = false; %>
 <div class='l_main<%- page.sidebar == false ? ' no_sidebar' : '' %>'>
   <% if (site.posts && site.posts.length > 0) { %>