diff --git a/demo/index.html b/demo/index.html
index 18bc76b..ed11193 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -52,7 +52,7 @@
         <p>Made by <a href="https://www.anotherhome.net/" target="_blank">DIYgod</a>. Available on <a href="https://github.com/DIYgod/APlayer" target="_blank">GitHub</a>. Licensed MIT.</p>
         <hr>
         <h3>Normal</h3>
-        <div id="player1" class="aplayer"></div>
+        <div id="player1"></div>
         <p></p>
         <button onclick="ap1.play()">ap.play()</button>
         <button onclick="ap1.seek(100)">ap.seek(100)</button>
diff --git a/src/js/player.js b/src/js/player.js
index 465167f..a868820 100644
--- a/src/js/player.js
+++ b/src/js/player.js
@@ -30,6 +30,7 @@ class APlayer {
 
         this.randomOrder = utils.randomOrder(this.options.music.length);
 
+        this.container.classList.add('aplayer');
         if (this.options.lrc) {
             this.container.classList.add('aplayer-withlrc');
         }