* {
  box-sizing: border-box;
}

dialog {
  position: fixed;
  top: 100px;
  left: 200px;
  width: 500px;
}

.traffic-lights {
  padding: 5px;
  width: 100px;
  height: 300px;
  border: 2px, solid, black;
  margin: 40px auto;
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  align-items: center;
}

.circle {
  width: 90px;
  height: 90px;
  border: 2px, solid, black;
  border-radius: 90%;
  background-color: black;
}

.toggle {
  display: block;
  margin: 20px auto;
}

.red {
  background-color: red;
}

.yellow {
  background-color: yellow;
}

.green {
  background-color: green;
}