<header>
  <h1>City Gallery</h1>
</header>

<nav>
  <a href="#">London</a><br> 
  <a href="#">Paris</a><br> 
  <a href="#">Tokyo</a>
</nav>

<section>
  <h1>London</h1>
  <p>London is the capital city of England. It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p>
  <p>Standing on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it Londinium.</p>
</section>

<footer>
  Copyright ©Your Site
</footer>
body {
  margin: 0px;
  font-family: Arial, Verdana;
  display: grid;
  grid-template-columns: 1fr 4fr;
  grid-template-rows: 100px auto 50px;
  grid-template-areas:
      "banner banner"
      "nav main"
      "footer footer";
  min-height: 100vh;
}

header {
  grid-area: banner;
}
nav {
 grid-area: nav; 
}
section {
  grid-area: main; 
}
footer {
  grid-area: footer;
}

header,
nav,
section,
footer {
  padding: 10px;
  box-sizing: border-box;
  border: solid 1px #CCC;
  height: 100%;
}

header, footer {
  text-align: center;
  background-color: #EEE;
}

nav {
  line-height: 30px;
  background-color: #EEE;
}

External CSS

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External JavaScript

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