diff --git a/src/views/study/coursenew.vue b/src/views/study/coursenew.vue
index c730436c..a06b8ce1 100644
--- a/src/views/study/coursenew.vue
+++ b/src/views/study/coursenew.vue
@@ -1800,19 +1800,40 @@
       min-height: 400px;
       display: flex;
       justify-content: space-between;
+      .course-player-container {
+        display: flex;
+        flex-direction: column;
+        height: 100%;
+      }
       .course-player{ //内容播放区域
-        background-color: #f5f7fa;
-        flex:1;
+        flex: 4; // 80%高度
         min-width: 700px;
-        min-height: 400px;
-        max-height: 800px;
-        //height: 100%;
+        // min-height: 400px;
+        // max-height: 800px;
+        height: 80%;
         border: 1px solid #ffffff;
         padding-right: 20px;
         // overflow: auto;
       }
       .course-control{ //内容控制区域
-         width: 420px;
+        width: 420px;
+      }
+    }
+
+    @media screen and (max-width: 1200px) {
+      .course-playbox,
+      .course-infobox {
+        flex-direction: column;
+      }
+      .course-player,
+      .course-info {
+        min-width: 100%;
+        padding-right: 0;
+      }
+      .course-control,
+      .course-teacher {
+        width: 100%;
+        margin-top: 20px;
       }
     }
     .course-infobox {
@@ -1934,13 +1955,10 @@
   }
 
   .player-box {
-    position: absolute;
-    // top: 62px;
-    // left: 184px;
-    width: 300px;
-    left: 50%;
-    top: 50%;
-    transform: translate(-50%, -50%);
+    position: relative;
+    width: 100%;
+    max-width: 300px;
+    margin: 20px auto;
     height: 187px;
     background: rgba(74, 74, 74, .5);
     border-radius: 33px;
@@ -2083,6 +2101,7 @@
   }
 
   .course-interact {
+    flex: 1; // 20%高度
     height: 54px;
     // padding-top: 10px;
     // padding-right: 10px;