body {
  background:#0e0e0e;
  color:#eee;
  font-family:monospace;
  display:flex;
  justify-content:center;
  margin-top:40px;
}
.card{
  width:800px;
  background:#1a1a1a;
  padding:20px;
  border-radius:10px;
}
textarea{
  width:100%;
  height:180px;
  background:#000;
  color:#0f0;
  padding:10px;
}
button,input{margin:8px 6px;}