body {
  background-color: #2687FB;
  font-size: 9px;
  min-width: 300px;
  font-family: sans-serif;
  color: white;
}

button {
  font-family: sans-serif;
  font-size: 9px;
}

span {
  display: inline-block;
  padding: 0px 20px;
}

.card {
  margin: 2px 2px -45px 2px;    
}

.wrapper {
  margin: 0 auto;
  width: 300px;
}

.empty {
  opacity: 0;
}
  
.winMessage {
  text-align: center;
}

.topPanel {
  text-align: center;
  padding: 10px;
}

@media only screen and 
(min-width: 540px) {
  body {
    min-width: 540px;
    color: white;
    font-size: 16px;
  }

  button {
    font-size: 16px;
  }

  span {
    display: inline-block;
    padding: 0 20px;
}
  .wrapper {
  margin: 0 auto;
  width: 540px;
}

  .topPanel {
    text-align: center;
    padding: 10px;
  }
  .card {
    margin: 5px 5px -80px 5px;    
  }
}