diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index d0d87c9ae1..29ad5768d7 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
   </head>
diff --git a/layouts/blog/baseof.html b/layouts/blog/baseof.html
index b0a6946dcc..5f162b9ee4 100644
--- a/layouts/blog/baseof.html
+++ b/layouts/blog/baseof.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
   </head>
diff --git a/layouts/blog/baseof.print.html b/layouts/blog/baseof.print.html
index 67a69ba9cd..b0cc3d23c7 100644
--- a/layouts/blog/baseof.print.html
+++ b/layouts/blog/baseof.print.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
   </head>
diff --git a/layouts/docs/baseof.html b/layouts/docs/baseof.html
index 8bc21ce691..4f8855325c 100644
--- a/layouts/docs/baseof.html
+++ b/layouts/docs/baseof.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
   </head>
diff --git a/layouts/docs/baseof.print.html b/layouts/docs/baseof.print.html
index c05a0a60c4..d268ca7c37 100644
--- a/layouts/docs/baseof.print.html
+++ b/layouts/docs/baseof.print.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
   </head>
diff --git a/layouts/partials/sidebar-tree.html b/layouts/partials/sidebar-tree.html
index 258267b005..fc267bbec7 100644
--- a/layouts/partials/sidebar-tree.html
+++ b/layouts/partials/sidebar-tree.html
@@ -5,14 +5,14 @@
   {{ if not .Site.Params.ui.sidebar_search_disable -}}
   <form class="td-sidebar__search d-flex align-items-center">
     {{ partial "search-input.html" . }}
-    <button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type="button" data-toggle="collapse" data-target="#td-section-nav" aria-controls="td-docs-nav" aria-expanded="false" aria-label="Toggle section navigation">
+    <button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type="button" data-toggle="collapse" data-target="#td-section-nav" aria-controls="td-section-nav" aria-expanded="false" aria-label="Toggle section navigation">
     </button>
   </form>
   {{ else -}}
   <div id="content-mobile">
   <form class="td-sidebar__search d-flex align-items-center">
     {{ partial "search-input.html" . }}
-    <button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type="button" data-toggle="collapse" data-target="#td-section-nav" aria-controls="td-docs-nav" aria-expanded="false" aria-label="Toggle section navigation">
+    <button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type="button" data-toggle="collapse" data-target="#td-section-nav" aria-controls="td-section-nav" aria-expanded="false" aria-label="Toggle section navigation">
     </button>
   </form>
   </div>
diff --git a/layouts/swagger/baseof.html b/layouts/swagger/baseof.html
index bf7baadd10..c81f209f49 100644
--- a/layouts/swagger/baseof.html
+++ b/layouts/swagger/baseof.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="{{ .Site.Language.Lang }}" class="no-js">
+<html itemscope itemtype="http://schema.org/WebPage" lang="{{ .Site.Language.Lang }}" class="no-js">
   <head>
     {{ partial "head.html" . }}
     <title>{{ if .IsHome }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{ . }} | {{ end }}{{ .Site.Title }}{{ end }}</title>
