#startBtt2{
    width: 100px;
    height: 100px;
    background-color: red;
    position: absolute;
    z-index: 99999;
}
#soundBtt{
    display:none;
    width:56px;
    height: 56px;
    background-image: url('../img/sound_on.png');
    background-size: 100% 100%;
    position: absolute;
    left:20px;
    top:20px;
    cursor: pointer;
    z-index: 9999;
}
/*
.no-touch #soundBtt:hover{
    background-image: url('../img/sound_off.png');
}

.no-touch #soundBtt.active:hover{

    background-image: url('../img/sound_on.png');
}

*/
#soundBtt.active{

    background-image: url('../img/sound_off.png');
}
@media screen and (max-width: 768px) {
    #soundBtt{
        left:20px;
        top:20px;
        width:45px;
        height:45px;
    }

}
@media screen and (max-width: 580px) {
    #soundBtt{
        left:5px;
        top:5px;
        width:35px;
        height:35px;
    }

}