diff --git a/src/forge/UsersList/common_users.js b/src/forge/UsersList/common_users.js
index c81bbd511..cae2a3c0d 100644
--- a/src/forge/UsersList/common_users.js
+++ b/src/forge/UsersList/common_users.js
@@ -84,7 +84,7 @@ class CommonUsers extends Component {
       </React.Fragment>
     );
     return (
-      <div className="background-g pbt15">
+      <div className="pbt15">
         <div className="main background-f  minH-670">
           <div className="plr-20 user-list-items">
             <div className="font-18 pb-10 border-b-line">{type_title}</div>
diff --git a/src/forge/UsersList/fork_users.js b/src/forge/UsersList/fork_users.js
index 88b1dc6dc..29236935e 100644
--- a/src/forge/UsersList/fork_users.js
+++ b/src/forge/UsersList/fork_users.js
@@ -120,7 +120,7 @@ class ForkUsers extends Component {
       }
     };
     return (
-      <div className="background-g pbt15">
+      <div className="pbt15">
         <div className="main background-f  minH-670">
           <div className="plr-20 user-list-items">
             <div className="font-18 pb-10 border-b-line">Fork列表</div>
diff --git a/src/forge/UsersList/list.css b/src/forge/UsersList/list.css
index 5b9f0927e..2de17ea1d 100644
--- a/src/forge/UsersList/list.css
+++ b/src/forge/UsersList/list.css
@@ -2,9 +2,9 @@
   background: #fff;
 }
 .newMain{background: transparent!important;}
-.background-g {
+/* .background-g {
   background: #fafafa;
-}
+} */
 .pt-15 {
   padding-top: 15px;
 }
diff --git a/src/modules/courses/css/Courses.css b/src/modules/courses/css/Courses.css
index e23575856..2f127ff74 100644
--- a/src/modules/courses/css/Courses.css
+++ b/src/modules/courses/css/Courses.css
@@ -583,7 +583,7 @@ span.CodeMirror-selectedtext {
 
 
 body #root {
-  background: #fafafa;
+  background: #EAEBEC;
 }
 
 .newedu-class-leftnav {
diff --git a/src/modules/tpm/TPMIndex.css b/src/modules/tpm/TPMIndex.css
index dde8c34c1..1f40ed793 100644
--- a/src/modules/tpm/TPMIndex.css
+++ b/src/modules/tpm/TPMIndex.css
@@ -96,7 +96,7 @@ body>.-task-title {
 }
 
 .newContainer {
-  background: #fafafa !important;
+  background: #EAEBEC !important;
 }
 
 .ant-modal-title {