body {
margin:15px;
}


svg .rects:hover { 
  //fill: #111;
  stroke-width:1;
	stroke:rgb(0,0,0)
}

.active {
	fill: #33f;
}

.random{
	stroke-width:2;
	stroke:#f00;
}

svg .rects { 
  transition: 50ms;
  transition-timing-function: ease-in-out;
  -webkit-transition: 50ms;
  -webkit-transition-timing-function: ease-in-out;
}