How do I make the whole area of a list item in my navigation bar, clickable as a link?

Question

I've got a horizontal navigation bar made from an unordered list, and each list item has a lot of padding to make it look nice, but the only area that works as a link is the text itself. How can I enable the user to click anywhere in the list item to active the link?

#nav {
  background-color: #181818;
  margin: 0px;
  overflow: hidden;
}

#nav img {
  float: left;
  padding: 5px 10px;
  margin-top: auto;
  margin-bottom: auto;
  vertical-align: bottom;
}

#nav ul {
  list-style-type: none;
  margin: 0px;
  background-color: #181818;
  float: left;
}

#nav li {
  display: block;
  float: left;
  padding: 25px 10px;
}

#nav li:hover {
  background-color: #785442;
}

#nav a {
  color: white;
  font-family: Helvetica, Arial, sans-serif;
  text-decoration: none;
}

<div id="nav">
  <img src="/images/renderedicon.png" alt="Icon" height="57" width="57" />
  <ul>
    <li><a href="#">One1</a></li>
    <li><a href="#">Two</a></li>
    <li><a href="#">Three</a></li>
    <li><a href="#">Four</a></li>
  </ul>
</div>
<div>
  <h2>Heading</h2>
</div>

Answer 1

Don't put padding in the 'li' item. Instead set the anchor tag to display:inline-block; and apply padding to it.