diff --git a/2.x/conf.py b/2.x/conf.py
index 9aac22c40..ebc64969d 100644
--- a/2.x/conf.py
+++ b/2.x/conf.py
@@ -67,7 +67,7 @@
 master_doc = 'index'
 
 # General information about the project.
-project = u'FISCO BCOS'
+project = u'FISCO BCOS v2'
 copyright = u'© 2020. All rights reserved.'
 author = u'fisco-bcos-dev'
 
diff --git a/2.x/en/conf.py b/2.x/en/conf.py
index 25bdb844e..da74fa34f 100644
--- a/2.x/en/conf.py
+++ b/2.x/en/conf.py
@@ -68,7 +68,7 @@
 master_doc = 'index'
 
 # General information about the project.
-project = u'FISCO BCOS EN'
+project = u'FISCO BCOS v2 EN'
 copyright = u'© 2020. All rights reserved.'
 author = u'fisco-dev'
 
diff --git a/_static/css/custom.css b/_static/css/custom.css
index f8d3ca5f4..5abc31d90 100644
--- a/_static/css/custom.css
+++ b/_static/css/custom.css
@@ -37,7 +37,7 @@ p {
 /* Side navigation bar */
 
 .wy-side-nav-search {
-    background-color: #252627;
+    background-color: #184596;
 }
 
 .wy-side-nav-search a.icon-home {
@@ -70,7 +70,7 @@ p {
 }
 
 .wy-nav-side {
-    background-color: #252627;
+    background-color: #184596;
 }