diff --git a/index.html b/index.html
index 530193da36..ce28ec2726 100644
--- a/index.html
+++ b/index.html
@@ -186,7 +186,7 @@
 <div class="md-container" data-md-component="container">
 <main class="md-main" data-md-component="main">
 <div class="md-main__inner md-grid">
-<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation">
+<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" hidden="">
 <div class="md-sidebar__scrollwrap">
 <div class="md-sidebar__inner">
 <nav aria-label="Navigation" class="md-nav md-nav--primary md-nav--lifted" data-md-level="0">
@@ -244,7 +244,7 @@
 </div>
 </div>
 </div>
-<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc">
+<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" hidden="">
 <div class="md-sidebar__scrollwrap">
 <div class="md-sidebar__inner">
 <nav aria-label="导航" class="md-nav md-nav--secondary">