* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: #f4f4f4;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

header {
  padding: 1rem;
  text-align: center;
  background-color: orange;
  color: white;
}

h1 {
  margin: 0;
}

h2 {
  color: orange;
}

main {
  padding: 20px 0;
}

section {
  width: 80%;
  margin: 0 auto;
  margin-bottom: 20px;
  padding: 20px;
  background-color: white;
}