修复：弹出层挂载容器问题；🐛

fix: the problem of pop up layer mount container;

public/index.html

@@ -15,7 +15,7 @@
     <noscript>
       <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
     </noscript>
-    <div class="beauty-scroll" style="height: 100vh; overflow-y: scroll">
+    <div id="popContainer" class="beauty-scroll" style="height: 100vh; overflow-y: scroll">
       <div id="app"></div>
     </div>
     <!-- require cdn assets js -->