diff --git a/docs/en/_static/css/readthedocs.css b/docs/en/_static/css/readthedocs.css
index 4192edac33..353aa9e285 100644
--- a/docs/en/_static/css/readthedocs.css
+++ b/docs/en/_static/css/readthedocs.css
@@ -1,6 +1,6 @@
 .header-logo {
     background-image: url("../image/mmyolo-logo.png");
-    background-size: 156px 40px;
+    background-size: 115px 40px;
     height: 40px;
-    width: 156px;
+    width: 115px;
 }
diff --git a/docs/en/conf.py b/docs/en/conf.py
index 70eb0c0e95..437a257a34 100644
--- a/docs/en/conf.py
+++ b/docs/en/conf.py
@@ -92,7 +92,7 @@ def get_version():
         },
     ],
     # Specify the language of shared menu
-    'menu_lang': 'cn',
+    'menu_lang': 'en',
 }
 
 # Add any paths that contain custom static files (such as style sheets) here,
@@ -101,8 +101,6 @@ def get_version():
 html_static_path = ['_static']
 html_css_files = ['css/readthedocs.css']
 
-language = 'zh_CN'
-
 # -- Extension configuration -------------------------------------------------
 # Ignore >>> when copying code
 copybutton_prompt_text = r'>>> |\.\.\. '
diff --git a/docs/zh_cn/_static/css/readthedocs.css b/docs/zh_cn/_static/css/readthedocs.css
index 4192edac33..353aa9e285 100644
--- a/docs/zh_cn/_static/css/readthedocs.css
+++ b/docs/zh_cn/_static/css/readthedocs.css
@@ -1,6 +1,6 @@
 .header-logo {
     background-image: url("../image/mmyolo-logo.png");
-    background-size: 156px 40px;
+    background-size: 115px 40px;
     height: 40px;
-    width: 156px;
+    width: 115px;
 }