body,
html {
  height: 100%;
}
body {
  color: #9a9a9a;
  font-family: Arial, sans-serif;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #1d1d1d;
}

button {
  padding: 10px;
  cursor: pointer;
}

.circleTrack {
  width: 500px;
  height: 50px;
  background: #233f5a;
  border-radius: 25px;
}

.circle {
  text-align: center;
  line-height: 50px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: dodgerblue;
  color: white;
  position: relative;
}
.wrapper {
  position: relative;
  width: 80%;
  min-width: 600px;
  height: 400px;
  background: #111;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#display {
  height: 70px;
  width: 500px;
  display: flex;
  align-content: center;
  justify-content: space-evenly;
}

#nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#display div {
  align-self: center;
  font-size: 22px;
}

span {
  color: white;
}

#slider {
  width: 300px;
  margin-left: 16px;
  margin-right: 16px;
}