.grid {
  width: 100%;
  height: 100%;
}

body {
  font-family: "Lucida Grande", "Lucida Sans Unicode", Helvetica, Arial, Verdana, sans-serif;
  font-size: 13px;
  margin: 0;
  padding: 0px;
}

.cell {
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: #fff;
}

.live {
  background-color: #000;
}