body {
  background-color: #232323;
  margin: 0;
  font-family: "PT Sans", sans-serif;
}

.square {
  width: 30%;
  margin: 1.66%;
  background-color: purple;
  padding-bottom: 30%;
  float: left;
  border-radius: 50%;
  transition: background 0.6s;
  --webkit-transition: background 0.6s;
  --moz-transition: background 0.6s;
}

#container {
  margin: 20px auto;
  max-width: 600px;
}

h1 {
  color: white;
  text-align: center;
  background-color: steelblue;
  margin: 0;
  font-weight: normal;
  text-transform: uppercase;
  line-height: 1.1;
  padding: 20px 0;
}

#colorDisplay {
  font-size: 200%;
}

#stripe {
  background: white;
  height: 30px;
  text-align: center;
  color: black;
}

.selected {
  background: steelblue;
  color: white;
}

button {
  border: none;
  background: none;
  text-transform: uppercase;
  height: 100%;
  font-weight: 700;
  color: steelblue;
  letter-spacing: 1px;
  font-size: inherit;
  transition: all 0.3s;
  --webkit-transition: all 0.3s;
  --moz-transition: all 0.3s;
  outline: none;
}

button:hover {
  background: steelblue;
  color: white;
}

#message {
  display: inline-block;
  width: 20%;
}

p{
  color: white;
  animation: glow 1s ease-in-out infinite alternate;
  --webkit-animation: glow 1s ease-in-out infinite alternate;
  --moz-animation: glow 1s ease-in-out infinite alternate;
}

@-webkit-keyframes glow {
  from {
    text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #00e645,
      0 0 40px #00e645, 0 0 50px #00e645, 0 0 60px #00e645, 0 0 70px #00e645;
  }
  to {
    text-shadow: 0 0 20px #fff, 0 0 30px #aa0909, 0 0 40px #aa0909,
      0 0 50px #aa0909, 0 0 60px #aa0909, 0 0 70px #aa0909, 0 0 80px #aa0909;
  }
}