body {
  background-color: #ffffff;
  color: #111827;
  margin-left: 20%;
  margin-right: 20%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

h2 {
  color: #374151;
}
h3,
h4 {
  color: #1d4ed8;
}

a {
  color: #1d4ed8;
  text-decoration: none;
}
a:hover {
  color: #1e40af;
  text-decoration: underline;
}