优化

src/components/IframeWrap.vue

@@ -87,8 +87,8 @@ const props = defineProps({
   }
   >button.back{
     position: absolute;
-    left: 15px;
-    top: 20px;
+    right: 10px;
+    top: 50px;
     width: 60px;
     height: 60px;
     background-image: url(@/assets/images/icon_back.png);

src/views/MuseumView.vue

@@ -3,7 +3,8 @@
     v-if="showIframe"
     class="iframe-wrap"
     :url="iframeUrl"
-    :need-back-btn="false"
+    :need-back-btn="true"
+    @back="showIframe = false"
   />
 
   <div