diff --git a/src/pages/course/compenents/create.module.less b/src/pages/course/compenents/create.module.less
index 779eb4e..26e0ddd 100644
--- a/src/pages/course/compenents/create.module.less
+++ b/src/pages/course/compenents/create.module.less
@@ -22,7 +22,7 @@
 }
 
 .hous-box {
-  width: 502px;
+  width: 500.53px;
   min-height: 56px;
   background: #ffffff;
   border-radius: 6px;
@@ -32,7 +32,7 @@
   /* Firefox */
   -webkit-box-sizing: border-box;
   /* Safari */
-  padding: 16px 16px 16px 0;
+  padding: 16px;
   margin-left: 42px;
   .no-hours {
     height: 24px;
@@ -40,7 +40,6 @@
     font-weight: 400;
     color: rgba(0, 0, 0, 0.25);
     line-height: 24px;
-    margin-left: 16px;
   }
 }
 
@@ -65,7 +64,7 @@
     margin-right: 24px;
   }
   .chapter-hous-box {
-    width: 502px;
+    width: 500.53px;
     min-height: 56px;
     background: #ffffff;
     border-radius: 6px;
@@ -75,7 +74,7 @@
     /* Firefox */
     -webkit-box-sizing: border-box;
     /* Safari */
-    padding: 16px 16px 16px 0;
+    padding: 16px;
     margin-top: 16px;
     .no-hours {
       height: 24px;
@@ -83,7 +82,6 @@
       font-weight: 400;
       color: rgba(0, 0, 0, 0.25);
       line-height: 24px;
-      margin-left: 16px;
     }
   }
 }
diff --git a/src/pages/course/compenents/hour-update.module.less b/src/pages/course/compenents/hour-update.module.less
index 80e90f4..f519010 100644
--- a/src/pages/course/compenents/hour-update.module.less
+++ b/src/pages/course/compenents/hour-update.module.less
@@ -42,7 +42,7 @@
 }
 
 .hous-box {
-  width: 502px;
+  width: 500.53px;
   min-height: 56px;
   background: #ffffff;
   border-radius: 6px;
@@ -52,7 +52,7 @@
   /* Firefox */
   -webkit-box-sizing: border-box;
   /* Safari */
-  padding: 16px 16px 16px 0;
+  padding: 16px;
   margin-left: 42px;
   .no-hours {
     height: 24px;
@@ -60,7 +60,6 @@
     font-weight: 400;
     color: rgba(0, 0, 0, 0.25);
     line-height: 24px;
-    margin-left: 16px;
   }
 }
 
@@ -85,7 +84,7 @@
     margin-right: 24px;
   }
   .chapter-hous-box {
-    width: 502px;
+    width: 500.53px;
     min-height: 56px;
     background: #ffffff;
     border-radius: 6px;
@@ -95,7 +94,7 @@
     /* Firefox */
     -webkit-box-sizing: border-box;
     /* Safari */
-    padding: 16px 16px 16px 0;
+    padding: 16px;
     margin-top: 16px;
     .no-hours {
       height: 24px;
@@ -103,7 +102,6 @@
       font-weight: 400;
       color: rgba(0, 0, 0, 0.25);
       line-height: 24px;
-      margin-left: 16px;
     }
   }
 }
diff --git a/src/pages/course/compenents/update.module.less b/src/pages/course/compenents/update.module.less
index 779eb4e..b44cb43 100644
--- a/src/pages/course/compenents/update.module.less
+++ b/src/pages/course/compenents/update.module.less
@@ -20,70 +20,3 @@
     margin-right: 0;
   }
 }
-
-.hous-box {
-  width: 502px;
-  min-height: 56px;
-  background: #ffffff;
-  border-radius: 6px;
-  border: 1px solid rgba(0, 0, 0, 0.15);
-  box-sizing: border-box;
-  -moz-box-sizing: border-box;
-  /* Firefox */
-  -webkit-box-sizing: border-box;
-  /* Safari */
-  padding: 16px 16px 16px 0;
-  margin-left: 42px;
-  .no-hours {
-    height: 24px;
-    font-size: 14px;
-    font-weight: 400;
-    color: rgba(0, 0, 0, 0.25);
-    line-height: 24px;
-    margin-left: 16px;
-  }
-}
-
-.chapter-item {
-  width: 502px;
-  height: auto;
-  display: flex;
-  flex-direction: column;
-  margin-left: 42px;
-  margin-bottom: 16px;
-  .label {
-    width: 78px;
-    height: 32px;
-    font-size: 14px;
-    font-weight: 400;
-    color: rgba(0, 0, 0, 0.85);
-    line-height: 32px;
-  }
-  .input {
-    width: 208px;
-    height: 32px;
-    margin-right: 24px;
-  }
-  .chapter-hous-box {
-    width: 502px;
-    min-height: 56px;
-    background: #ffffff;
-    border-radius: 6px;
-    border: 1px solid rgba(0, 0, 0, 0.15);
-    box-sizing: border-box;
-    -moz-box-sizing: border-box;
-    /* Firefox */
-    -webkit-box-sizing: border-box;
-    /* Safari */
-    padding: 16px 16px 16px 0;
-    margin-top: 16px;
-    .no-hours {
-      height: 24px;
-      font-size: 14px;
-      font-weight: 400;
-      color: rgba(0, 0, 0, 0.25);
-      line-height: 24px;
-      margin-left: 16px;
-    }
-  }
-}