* {box-sizing:border-box;}
body {text-align:center;}
input {
    padding:1em 1em;
    width:90%;
    margin: 2em;
}
button {
    display:inline-block;
    width: 40%;
    padding:1em 1em;
    margin:0 5%;
}

#output {
  margin:2em auto;
  padding:1em;
  background:#23232e;
  color:#fff;
  width:90%;
}

h1 {
  font-family: Arial, Helvetica, sans-serif;
  margin-top:  30px;
}

#article {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  text-align: left;
  padding: 8% 8% 1%;
}