html {
    cursor: url(img/cursor.cur), progress; 
    user-select: none;
    -webkit-user-select: none; /* Safari */
    -moz-user-select: none;    /* Firefox */
    -ms-user-select: none;     /* Internet Explorer/Edge */
}
body {
    background-image: url('img/bg1.gif');
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;

}
div.quad1{
    background-color: rgb(23, 23, 23, 0.7);
    height: 500px;
    width: 800px;
    border-radius: 10%;
    display: flex;
    align-items: center;
    justify-content: center;
}
img#imagemSom{
    height: 150px;
    width: 150px;
    transition: transform 0.2s;
}