.block {
  height: 100px;
  margin-left: 50%;
  margin-top: 50%;
  left: -50px;
  position: absolute;
  top: -50px;
  width: 100px;
  -webkit-border-radius: 50px;
}

#topCenter {
  left: -50px;
  top: -400px;
}

#middleCenter {
  left: -50px;
  top: -50px;
}

#bottomCenter {
  left: -50px;
  top: 300px;
}

#topLeft {
  left: -298px;
  top: -298px;
}

#middleLeft {
  left: -400px;
  top: -50px;
}

#bottomLeft {
  left: -298px;
  top: 197px;
}

#topRight {
  left: 197px;
  top: -298px;
}

#middleRight {
  left: 300px;
  top: -50px;
}

#bottomRight {
  left: 197px;
  top: 197px;
}

.start {
  background-color: green;
}

.select {
  background-color: blue;
  display: none;
}