diff --git a/assets/loading.css b/assets/loading.css
index b71bc0c..2a01240 100644
--- a/assets/loading.css
+++ b/assets/loading.css
@@ -32,30 +32,30 @@
 
 /* 加载进度条 */
 .loading-bar {
+  position: fixed;
+  top: 0;
+  left: 0;
+  z-index: 99999;
+  opacity: 0;
+  transition: opacity .4s linear;
+
+  .progress {
     position: fixed;
     top: 0;
     left: 0;
-    z-index: 99999;
-    opacity: 0;
-    transition: opacity .4s linear;
-  
+    width: 0;
+    height: 4px;
+    background-color: #007bff;
+    box-shadow: 0 0 10px rgba(119, 182, 255, .7);
+  }
+
+  &.loading {
+    opacity: 1;
+    transition: none;
+
     .progress {
-      position: fixed;
-      top: 0;
-      left: 0;
-      width: 0;
-      height: 4px;
-      background-color: #007bff;
-      box-shadow: 0 0 10px rgba(119, 182, 255, .7);
-    }
-  
-    &.loading {
-      opacity: 1;
-      transition: none;
-  
-      .progress {
-        transition: width .4s ease;
-      }
+      transition: width .4s ease;
     }
   }
+}
 /* 加载进度条结束 */
\ No newline at end of file