*{
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}
header {
  background: #007bff;
  color: white;
  padding: 20px;
  text-align: center;
}
section {
  width:90%;
  padding: 20px;
  margin: 20px auto;
  max-width: 800px;
  background: white;
  border-radius: 5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
h1,
h2 {
  margin: 0 0 10px;
}
.button {
  display: inline-block;
  padding: 10px 20px;
  background: #28a745;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}
footer {
  text-align: center;
  padding: 10px;
  background: #007bff;
  color: white;
  position: relative;
  bottom: 0;
  width: 100%;
}