diff --git a/index.html b/index.html
index e4c68f2..13f7ab7 100644
--- a/index.html
+++ b/index.html
@@ -175,12 +175,12 @@
             <img src="{{ "assets/images/cim_logo.png" }}" class="logo" onclick="enable_download()"/>
             <div class="control-container">
                 <div class="controls">
-                    <a id="play-button" class="deactivated" onclick="play_audio()">
+                    <button id="play-button" class="deactivated" onclick="play_audio()">
                         <i class="fa fa-play" aria-hidden="true"></i>
-                    </a>
-                    <a id="next-chord" class="deactivated" onclick="next_audio()">
+                    </button>
+                    <button id="next-chord" class="deactivated" onclick="next_audio()">
                         <i class="fa fa-arrow-right" aria-hidden="true"></i>
-                    </a>
+                    </button>
                 </div>
             </div>
         </div>