img { border: 0}

#nuvola{
position: absolute;
left: -300px;
width: auto; /*150px;*/
min-width: 50px;
border: 1px solid black;
padding: 2px 5px 2px 5px;
background-color: lightyellow;
visibility: hidden;
z-index: 100;
}

#angolonuvola{
position:absolute;
left: -300px;
z-index: 101;
visibility: hidden;
}