<header>
  Página Inicial
</header>
<main>
  Boas-vindas à nossa página.
</main>
body {
  margin: 0;
}

header {
  height: 40px;
  background-color: #fa9d48;
  color: #fafafa;
  text-align: center;
  padding: 10px;
  box-sizing: border-box;
  font-family: Tahoma, sans-serif;
}

main {
  background-color: #fafafa;
  font-family: Tahoma, sans-serif;
  padding: 10px;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.