html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000
}

.terminal-container {
  width: 80%;
  max-width: 800px;
  border: 2px solid #fff;
  padding: 20px;
  background-color: #000;
}

#terminal {
  width: 100%;
}