Update index.html

index.html

@@ -227,7 +227,7 @@ audio {
       margin: 0 auto;
       font-family: Arial, sans-serif;
       padding: 20px;
-      background-image: url('https://dm0qx8t0i9gc9.cloudfront.net/watermarks/image/rDtN98Qoishumwih/colorful-musical-notes-wave-background_zkTcaoOd_SB_PM.jpg');
+      background-image: linear-gradient( 135deg, #43CBFF 10%, #9708CC 100%);
       background-size: cover;
       border: 1px solid #cccccc;
       border-radius: 5px;