body {
  font-family: Arial;
  background: #f4f6f9;
  padding: 20px;
}

.card {
  background: white;
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 10px;
}

.status {
  padding: 5px 10px;
  border-radius: 20px;
}

.online {
  background: green;
  color: white;
}

.offline {
  background: red;
  color: white;
}

input {
  padding: 8px;
  width: 200px;
}

button {
  padding: 10px 15px;
  margin-right: 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.yes {
  background: green;
  color: white;
}

.no {
  background: red;
  color: white;
}

pre {
  background: black;
  color: lime;
  padding: 10px;
}