diff --git a/demo/assets/style.css b/demo/assets/style.css
index 67a7f17..f67518d 100644
--- a/demo/assets/style.css
+++ b/demo/assets/style.css
@@ -1,3 +1,7 @@
+html {
+    color: #111;
+    font-family: sans-serif;
+}
 .demodiv {
     width: 300px;
     height: 300px;
diff --git a/demo/index.html b/demo/index.html
index 05f6d4c..cedce29 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -25,7 +25,7 @@ <h1>Data Attributes</h1>
             ></div>
 
         <script src="../node_modules/jquery/dist/jquery.min.js"></script>
-        <script src="../bgimg.js"></script>
+        <script src="../jquery.bgimg.js"></script>
         <script type="text/javascript">
             $('.demo').bgimg();
             $('.demo2').bgimg({
diff --git a/jquery-bgimg.js b/jquery.bgimg.js
similarity index 100%
rename from jquery-bgimg.js
rename to jquery.bgimg.js