body {
  font-family: 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 2em auto;
  padding: 2em;
  background-color: lightblue;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
}

h1 {
  text-align: center;
  color: #2c3e50;
  letter-spacing: 1px;
}

iframe {
  display: block;
  width: 100%;
  height: 500px;
  border: none;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.button {
  display: inline-block;
  padding: 12px 24px;
  background-color: #3498db;
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.button:hover {
  background-color: #2980b9;
}