<nav>
  <input type="checkbox" role="button" aria-label="Display the menu" aria-expanded="false" aria-controls="menu">
  <ul id="menu">
    <li><a href="/">Home</a></li>
    <li><a href="/about">About</a></li>
    <li><a href="/shop">Shop</a></li>
    <li><a href="/contact">Contact</a></li>
</ul>
</nav>
<main>
  <h1>Title</h1>
</main>

body {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  margin: 0;
}

ul {
  padding: 20px 0;
  margin: 0;
  min-height: 100vh;
  min-width: 180px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  list-style: none;
  background: teal;
}
ul li a {
  padding: 10px 20px;
  display: block;
  color: #fff;
  text-decoration: none;
  font-size: 20px;
  font-weight: bold;
  font-family: sans-serif;
}
ul li a:hover {
  text-decoration: underline;
}
nav input {
  display: none;
}