* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  background-color: #fff;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 900px;
  text-align: center;
}

h1 {
  font-size: 24px;
  margin-bottom: 20px;
  color: #333;
}

input[type="text"] {
  width: 70%;
  padding: 10px;
  font-size: 16px;
  border-radius: 5px;
  border: 1px solid #ccc;
  margin-bottom: 10px;
}

button {
  padding: 10px 16px;
  margin: 5px;
  font-size: 15px;
  border: none;
  border-radius: 5px;
  background-color: #007bff;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

.device-buttons {
  margin: 15px 0;
}

.device-view {
  margin-top: 20px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  margin-left: auto;
  margin-right: auto;
  transition: width 0.3s, height 0.3s;
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.device-view {
  margin-top: 20px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  transition: width 0.3s, height 0.3s;
  background-color: white;
}