抹平css->layout->position fixed元素web和app的差异

pages/CSS/layout/position.uvue

@@ -81,7 +81,7 @@
           <view
             style="width: 50px; height: 50px; background-color: red"
           ></view>
-          <view class="common" style="position: fixed">
+          <view class="common fixed" style="position: fixed">
             <text>fixed</text>
           </view>
           <view
@@ -111,6 +111,7 @@
     <!-- #ifdef APP -->
   </scroll-view>
   <!-- #endif -->
+
 </template>
 
 <style>
@@ -123,4 +124,11 @@
   justify-content: center;
   align-items: center;
 }
+
+.fixed {
+  /* #ifdef H5*/
+  top:  calc(var(--window-top) + 25px);
+  /* #endif */
+}
+
 </style>