body {
    background-color: #373a3c;
  }

input[type="text"] {
    display: block;
    margin : 0 auto;
    color: white;
    background-color: #111111;
    border: 1px solid #0099ff;
    border-radius: 24px;
    padding: 4px 8px;
    font-size:24px;
    text-align: center;
  }

input[type=text]:focus{
    outline: 2px solid #0099ff;  
  }

.center {
    margin-top: 50px;
  }