body{
  background:#000;
  color:#cfcfcf;
  font-family: monospace;
  text-align:center;
  padding: 20vh 16px 0;
  margin:0;
}

.box{
  max-width: 720px;
  margin: 0 auto;
  border: 1px solid #222;
  padding: 22px;
  background: rgba(255,255,255,0.02);
}

button{
  background:none;
  border:1px solid #555;
  color:#555;
  padding:10px 18px;
  margin:14px 10px 0;
  cursor:not-allowed;
}

button.enabled{
  color:#cfcfcf;
  border-color:#cfcfcf;
  cursor:pointer;
}

button.enabled:hover{
  border-color:#fff;
  color:#fff;
}

.timer{
  margin-top:18px;
  font-size:12px;
  color:#777;
}