<details open>
  <summary>Drawer 1</summary>
  <ul>
    <li>Thing 1</li>
    <li>Thing 2</li>
    <li>Thing 3</li>
    <li>Thing 4</li>
  </ul>
</details>
<details>
  <summary>Drawer 2</summary>
  <ul>
    <li>Thing 1</li>
    <li>Thing 2</li>
    <li>Thing 3</li>
    <li>Thing 4</li>
  </ul>
</details>

details {
  background: rebeccapurple;
  color: #ddd;
  width: 300px;
  border-radius: 4px;
  margin-bottom: 5px;
}
summary {
  padding: 10px;
}
summary:focus {
  outline: none;
}
details ul {
  background: #ddd;
  margin: 0;
  color: black;
  padding: 10px;
  border-radius: 0 0 4px 4px;
}

details li {
  margin-left: 30px;
  margin-top: 10px;
}