hw-js-13-async-2/src/styles.css

body{
  position: relative;
  margin: 0;
  background-color: rgb(226, 221, 221);
  min-height: 100vh;
}

.trafficLights{
  width: 100px;
  margin: 0 auto;
  border-radius: 10px;
  border: solid 4px black;
  display: flex;
  flex-wrap: wrap;
  padding: 20px;
  background-color: grey;
}

.trafficLights__off{
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: gainsboro;
  border: solid 4px black;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 45px;
  color: rgb(5, 5, 5);
}

.trafficLights__off:not(:last-child){
  margin-bottom: 20px;
}

.resolvePromise{
  background-color: green;
  color: white;
  font-size: 35px;
  display: block;
  margin: 0 auto;
  margin-top: 40px;
}