bug fix

src/view/Manage/Model/index.less

@@ -10,30 +10,6 @@
     overflow: hidden;
   }
 
-  .tree-toggle-wrap {
-    position: relative;
-    width: 15px;
-    height: 100%;
-    background: #f0f2f5;
-  
-    .tree-toggle {
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      left: 0;
-      right: 0;
-      background: #f2f5fc;
-      position: absolute;
-      top: calc(50% - 40px);
-      width: 12px;
-      height: 80px;
-      border-radius: 0 12px 12px 0;
-      -ms-transform: translateY(-50%);
-      transform: translateY(-50%);
-      cursor: pointer;
-    }
-  }
-
   .right {
     flex: 1;
     overflow: hidden;
@@ -44,4 +20,28 @@
   .left {
     width: 0 !important;
   }
+}
+
+.tree-toggle-wrap {
+  position: relative;
+  width: 15px;
+  height: 100%;
+  background: #f0f2f5;
+
+  .tree-toggle {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    left: 0;
+    right: 0;
+    background: #f2f5fc;
+    position: absolute;
+    top: 50%;
+    width: 12px;
+    height: 80px;
+    border-radius: 0 12px 12px 0;
+    -ms-transform: translateY(-50%);
+    transform: translateY(-50%);
+    cursor: pointer;
+  }
 }
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