body {
    background-color:transparent;
    overflow:hidden;
    padding:0;
    margin: 0;
}
a:link { 
    cursor:nw-resize;
}
img { border: 0;
    display:block;
}
.pioggia {
  position:absolute;
  left:0;
  top:0;
  width:180%;
  height:350px;
  pointer-events:none;
}
.brillantino{
  position:absolute;
  top:-40px;
  animation: caduta linear infinite;
  animation-duration: calc(5s + var(--i) * 0.5s);
  animation-delay: calc(var(--i) * 0.5s);
}
@keyframes caduta{
  from { transform: translateY(-40px); }
  to { transform: translateY(320px); }
}