body {
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
}

.container {
  text-align: center;
  background: white;
  padding: 20px 30px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

h1 {
  margin-bottom: 10px;
}

#clickBtn {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  border-radius: 5px;
  background: #4facfe;
  color: white;
  cursor: pointer;
}

#clickBtn:hover {
  background: #00c6ff;
}