diff --git a/src/index.less b/src/index.less
index d165b2f..97b34c6 100644
--- a/src/index.less
+++ b/src/index.less
@@ -123,7 +123,7 @@ code {
   height: 150px;
 }
 
-.playedu-main-top{
+.playedu-main-top {
   width: 100%;
   height: auto;
   float: left;
@@ -136,14 +136,14 @@ code {
 .playedu-main-body {
   width: 100%;
   height: auto;
-  min-height: calc(100vh - 252px);
+  min-height: calc(100vh - 172px);
   float: left;
   background-color: white;
   box-sizing: border-box;
   padding: 24px;
   border-radius: 12px;
-  &.only{
-    min-height: calc(100vh - 172px);
+  &.only {
+    min-height: calc(100vh - 276px);
   }
 }
 
diff --git a/src/pages/course/index.tsx b/src/pages/course/index.tsx
index f5564da..76285b9 100644
--- a/src/pages/course/index.tsx
+++ b/src/pages/course/index.tsx
@@ -211,7 +211,7 @@ export const CoursePage = () => {
               </div>
             </div>
           </div>
-          <div className="playedu-main-body">
+          <div className="playedu-main-body only">
             <div className="float-left j-b-flex mb-24">
               <div className="d-flex">
                 <Link style={{ textDecoration: "none" }} to={`/course/create`}>
diff --git a/src/pages/member/index.tsx b/src/pages/member/index.tsx
index 0593b39..2cf8cdd 100644
--- a/src/pages/member/index.tsx
+++ b/src/pages/member/index.tsx
@@ -234,7 +234,7 @@ export const MemberPage: React.FC = () => {
               </div>
             </div>
           </div>
-          <div className="playedu-main-body">
+          <div className="playedu-main-body only">
             <div className="float-left j-b-flex mb-24">
               <div className="d-flex">
                 <Link style={{ textDecoration: "none" }} to={`/member/create`}>
diff --git a/src/pages/system/administrator/index.tsx b/src/pages/system/administrator/index.tsx
index f56162c..2827b7c 100644
--- a/src/pages/system/administrator/index.tsx
+++ b/src/pages/system/administrator/index.tsx
@@ -178,7 +178,7 @@ export const SystemAdministratorPage: React.FC = () => {
         </div>
       </div>
 
-      <div className="playedu-main-body">
+      <div className="playedu-main-body only">
         <div className="float-left j-b-flex mb-24">
           <div className="d-flex">
             <Link