body {
    margin: 0;
    padding: 20px;
    font-family: Arial, sans-serif;
}
#bgAudioMuteBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border: 3px outset #999;
    color: white;
    font-size: 20px;
    cursor: pointer;
    font-weight: bold;
    text-shadow: 1px 1px 0px #000;
    
    
    background:  #D812E0;
    
    border-color: #AB1EC7
    
    
}