diff --git a/docs/faq/electron-faq.md b/docs/faq/electron-faq.md
index 41b301d71981..77d1fca66e9a 100644
--- a/docs/faq/electron-faq.md
+++ b/docs/faq/electron-faq.md
@@ -144,6 +144,17 @@ is very likely you are using the module in the wrong process. For example
 `electron.app` can only be used in the main process, while `electron.webFrame`
 is only available in renderer processes.
 
+## Why is my app's background transparent?
+Since Electron `0.37.3`, the default user-agent background color is `transparent`. Simply specify a background color in HTML;
+
+```html
+<style type='text/css'>
+  html {
+    background: white;
+  }
+</style>
+```
+
 [memory-management]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Memory_Management
 [variable-scope]: https://msdn.microsoft.com/library/bzt2dkta(v=vs.94).aspx
 [electron-module]: https://www.npmjs.com/package/electron